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Respiratory Virus Report, Week 31 - ending August 6, 2022

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Organization: Public Health Agency of Canada

In this Respiratory Virus Report, the number of detections of coronavirus reflects only seasonal human coronaviruses, not the novel pandemic coronavirus (SARS-CoV-2) that causes COVID-19. For information on COVID-19, see the Coronavirus disease (COVID-19): Outbreak update

Overall Summary

Weekly respiratory virus detections have steadily decreased since mid-May.

  • Influenza activity is at interseasonal levels, with only 24 detections (23 influenza A, 1 influenza B) reported in week 31 (week ending August 6, 2022).
  • Enterovirus/Rhinovirus remains the most common seasonal respiratory virus detected in Canada (248 detections; 11.5% positive). Activity remains slightly below expected levels for this time of year.
  • Activity of most other respiratory viruses is near expected levels.
    • With the exception of human metapneumovirus, where activity has fluctuated in recent weeks but is above expected levels for this time of year (77 detections; 3.5% positive).
  • The number of tests performed for all viruses was above expected levels.
  • 25/34 sentinel laboratories reported surveillance data.

On this page

Abbreviations:
Flu
Influenza
Flu A(H1)pdm09
Influenza A(H1N1)pdm09
Flu A(H3)
Influenza A(H3N2)
Flu A(UnS)
Influenza A(Unsubtyped)
RSV
Respiratory syncytial virus
HPIV
Human parainfluenza virus
HMPV
Human metapneumovirus
ADV
Adenovirus
EV/RV
Enterovirus/Rhinovirus
HCoV
Human coronavirus
Atl
Atlantic Canada
BC
British Columbia
Can
Canada
EORLA
Eastern Ontario Regional Laboratory Association
HSC
Health Sciences Centre
N.C.
Data not collected
N.R.
Data not reported for current week
ON
Ontario
PR
Prairies
P.H.O.L.
Public Health Ontario Laboratory
QC
Quebec
Terr
Territories of Canada
UHN
University Health Network

Respiratory virus detections

Table 1: Respiratory virus detections for the week ending August 6, 2022 (surveillance week 2022-31)
Reporting Laboratory Flu Tested A(H1)pdm09 Positive A(H3) Positive A(UnS) Positive Total Flu A Positive Total Flu B Positive RSV Tested RSV Positive HPIV Tested HPIV 1 Positive HPIV 2 Positive HPIV 3 Positive HPIV 4 Positive Other HPIV Positive ADV Tested ADV Positive HMPV Tested HMPV Positive EV/RV Tested EV/RV Positive HCoV Tested HCoV Positive
Newfoundland 143 0 0 0 0 0 143 5 143 0 1 0 0 0 144 2 143 3 143 9 143 0
Prince Edward Island 16 0 0 0 0 0 16 0 16 0 0 2 1 0 16 0 16 1 16 1 16 0
Nova Scotia 445 0 0 0 0 1 445 2 43 0 0 1 1 0 43 1 43 2 43 7 43 0
New Brunswick 292 0 0 0 0 0 226 4 46 0 1 3 0 0 46 5 46 1 46 2 46 1
Atlantic 896 0 0 0 0 1 830 11 248 0 2 6 2 0 249 8 248 7 248 19 248 1
Région Nord-Est N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.C. N.C. N.R. N.R.
Québec-Chaudière-Appalaches N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.C. N.C. N.R. N.R.
Centre-du-Québec N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.C. N.C. N.R. N.R.
Montréal-Laval   N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.C. N.C. N.R. N.R.
Ouest du Québec N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.C. N.C. N.R. N.R.
Montérégie N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.C. N.C. N.R. N.R.
Province of Québec N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.C. N.C. N.R. N.R.
P.H.O.L. - Ottawa 45 0 0 0 0 0 45 0 45 0 0 0 0 0 45 0 45 3 45 45 0
EORLA 150 0 0 0 0 0 150 2 33 0 0 1 0 0 33 1 33 0 33 4 33 0
P.H.O.L. - Kingston 22 0 0 0 0 0 22 0 22 0 0 0 0 0 22 0 22 5 22 4 22 0
UHN / Mount Sinai Hospital 427 0 0 0 0 0 427 2 20 0 0 0 0 0 20 0 20 0 20 0 20 0
P.H.O.L. - Toronto   167 0 1 0 1 0 167 2 167 0 0 0 0 11 167 5 167 8 167 12 167 5
Sick Kids Hospital - Toronto N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R.
Sunnybrook & Women's College HSC N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R.
P.H.O.L. - Sault Ste. Marie 11 0 0 0 0 0 11 1 11 0 0 0 0 0 11 0 11 0 11 2 11 0
P.H.O.L. - Timmins 12 0 0 0 0 0 12 0 12 0 0 0 0 0 12 0 12 0 12 1 12 0
St. Joseph's - London   58 0 0 0 0 0 58 1 58 0 0 0 0 2 58 5 58 5 58 12 3 0
P.H.O.L. - London 51 0 0 0 0 0 51 2 51 0 0 0 0 3 51 1 51 3 51 2 51 0
P.H.O.L. - Orillia 22 0 0 0 0 0 22 0 22 0 0 0 0 5 22 1 22 1 22 4 22 0
P.H.O.L. - Thunder Bay 5 0 0 0 0 0 5 0 5 0 0 0 0 0 5 0 5 0 5 0 5 0
P.H.O.L. - Sudbury 6 0 0 0 0 0 6 0 6 0 0 0 0 0 6 1 6 0 6 0 6 0
P.H.O.L. - Hamilton 45 0 0 0 0 0 45 0 45 0 0 0 0 0 45 0 45 1 45 3 45 1
P.H.O.L. - Peterborough 25 0 0 0 0 0 25 5 25 0 0 0 0 0 25 1 25 3 25 4 25 0
St. Joseph's - Hamilton N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R. N.R.
Province of Ontario 1046 0 1 0 1 0 1046 15 522 0 0 1 0 21 522 15 522 29 522 48 467 6
Province of Manitoba    505 0 0 0 0 0 505 7 115 0 0 2 4 0 115 7 134 8 115 29 134 1
Province of Saskatchewan 325 0 0 1 1 0 325 2 140 0 1 5 2 0 140 4 140 13 140 19 140 1
Province of Alberta 1681 1 9 2 12 0 1523 19 745 0 5 16 3 0 743 10 744 3 729 66 745 6
Prairies 2511 1 9 3 13 0 2353 28 1000 0 6 23 9 0 998 21 1018 24 984 114 1019 8
British Columbia 2366 0 2 0 9 0 2205 10 383 1 1 15 3 1 383 15 383 17 375 59 375 1
Yukon 8 0 0 0 0 0 8 0 N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C.
Northwest Territories 32 0 0 0 0 0 31 6 2 0 0 0 0 0 2 0 2 0 31 7 2 0
Nunavut 78 0 0 0 0 0 78 0 N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C.
Territories 118 0 0 0 0 0 117 6 3 0 0 0 0 0 3 0 3 0 32 8 3 0
CANADA 6937 1 12 3 23 1 6551 70 2156 1 9 45 14 22 2155 59 2174 77 2161 248 2112 16

The data in the RVDSS report represent surveillance data available at the time of writing. Data missing from the current week are denoted by N.R. Data not collected by reporting lab denoted by N.C.

The reporting laboratory previously listed as CHEO - Ottawa is now listed as EORLA to better reflect data submitted by this provider.

Specimens from Yukon (YT) are sent to reference laboratories in British Columbia and reported results reflect specimens identified as originating from YT.

Results from British Columbia comprise of specimens from the following sites: BC Children's and Women's Hospital, Children's and Women's Hospital Laboratory, Fraser Health Medical Microbiology Laboratory, Island Health, Providence Health Care, Powell River Hospital, St. Paul's Hospital, Vancouver General Hospital, Victoria General Hospital, BCCDC Public Health Laboratory, Interior Health Authority sites and Northern Health Authority sites.

Delays in the reporting of data may cause data to change retrospectively.

For British Columbia, only data from subtyped influenza A specimens are included in the weekly number of influenza detections. The sum of A(H1N1)pdm09, A(H3), and A(UnS) positive results may not equal the sum of total Flu A positive results.

Due to different testing protocols of laboratories across Canada, influenza A subtype detection counts may not be included in total influenza A detection counts, as some subtype detections are not available through routine testing but are subsequently reported if further subtype testing is conducted. In these instances, subtype counts do not reflect influenza A detections intended to be captured by routine surveillance, and are excluded from total detections and percent positivity.

Table 2: Cumulative respiratory virus detections from August 29, 2021 to August 6, 2022 (surveillance weeks 2021-35 to 2022-31)
Reporting Laboratory Flu Tested A(H1)pdm09 Positive A(H3) Positive A(UnS) Positive Total Flu A Positive Total Flu B Positive RSV Tested RSV Positive HPIV Tested HPIV 1 Positive HPIV 2 Positive HPIV 3 Positive HPIV 4 Positive Other HPIV Positive ADV Tested ADV Positive HMPV Tested HMPV Positive EV/RV Tested EV/RV Positive HCoV Tested HCoV Positive
Newfoundland 15422 0 135 192 327 0 15420 236 15423 1 33 116 1 314 15431 58 15417 100 15484 2163 1204 21
Prince Edward Island 2721 0 48 17 65 0 2721 262 2676 1 1 162 32 1 2721 74 2721 108 2721 635 2721 140
Nova Scotia 26191 0 2 420 422 9 26195 412 1999 1 4 44 32 0 2019 27 2019 61 2019 185 2019 48
New Brunswick 20708 0 111 384 495 0 13155 367 3610 1 11 48 29 0 3603 55 3610 48 3610 150 3519 23
Atlantic 65042 0 296 1013 1309 9 57491 1277 23708 4 49 370 94 315 23774 214 23767 317 23834 3133 9463 232
Région Nord-Est 36358 45 1 2193 2239 27 16412 1481 836 2 1 13 1 0 927 19 440 16 N.C. N.C. 1271 24
Québec-Chaudière-Appalaches 14522 0 0 1432 1432 57 15592 1016 1852 1 18 16 19 0 5394 148 5287 136 N.C. N.C. 3157 115
Centre-du-Québec 14818 0 3 1291 1294 11 13140 1107 1491 6 8 33 4 0 1491 43 1499 29 N.C. N.C. 1484 31
Montréal-Laval   39271 0 5 1561 1566 10 33229 2533 10697 30 95 145 11 0 10696 592 10694 442 N.C. N.C. 11035 263
Ouest du Québec 8985 0 6 654 660 0 8927 945 326 2 8 8 7 0 319 26 315 16 N.C. N.C. 315 6
Montérégie 6975 0 0 319 319 1 5684 402 0 0 0 0 0 0 0 0 0 0 N.C. N.C. 0 0
Province of Québec 120929 45 15 7450 7510 106 92984 7484 15202 41 130 215 42 0 18827 828 18235 639 N.C. N.C. 17262 439
P.H.O.L. - Ottawa 7263 2 81 1 84 0 7263 1442 7263 0 0 0 0 749 7263 313 7261 61 7263 2264 7261 298
EORLA 9242 0 0 176 176 0 9217 666 1396 0 3 31 13 0 1396 28 1077 34 1396 224 1054 33
P.H.O.L. - Kingston 1751 0 220 0 9 0 1758 148 1755 0 0 0 0 145 1756 31 1737 47 1755 395 1737 101
UHN / Mount Sinai Hospital 22863 0 0 57 57 5 22864 124 769 0 1 0 0 0 769 1 769 2 769 21 769 13
P.H.O.L. - Toronto   12388 2 395 2 131 0 12374 309 12374 0 0 0 0 459 12380 188 12364 253 12374 1356 12365 502
Sick Kids Hospital - Toronto 839 0 0 0 0 0 0 0 839 0 2 68 1 0 839 12 839 1 839 233 839 10
Sunnybrook & Women's College HSC 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
P.H.O.L. - Sault Ste. Marie 391 0 4 1 4 0 390 13 390 0 0 0 0 9 390 4 390 2 390 65 390 23
P.H.O.L. - Timmins 559 0 17 0 10 0 559 28 559 0 0 0 0 23 559 1 558 8 559 43 558 33
St. Joseph's - London   13417 0 0 73 73 0 13420 792 11863 0 0 7 0 101 11863 166 11863 122 11817 688 576 4
P.H.O.L. - London 4289 0 57 11 60 0 4288 471 4288 0 0 0 0 200 4288 100 4285 115 4288 539 4285 303
P.H.O.L. - Orillia 1175 0 9 1 10 0 1175 153 1175 0 0 0 0 80 1175 44 1172 76 1175 291 1172 81
P.H.O.L. - Thunder Bay 383 0 6 0 5 0 383 27 383 0 0 0 0 25 383 1 383 12 383 64 383 37
P.H.O.L. - Sudbury 403 0 6 0 6 0 403 12 403 0 0 0 0 12 403 3 403 7 403 37 403 14
P.H.O.L. - Hamilton 2292 0 25 2 23 0 2287 79 2287 0 0 0 0 78 2288 24 2287 61 2287 297 2287 119
P.H.O.L. - Peterborough 747 0 2 0 2 0 747 67 740 0 0 0 0 19 740 8 737 15 740 124 737 45
St. Joseph's - Hamilton 24329 0 4 237 241 1 24323 1651 24323 5 0 663 0 0 24323 234 24323 263 24323 2098 0 0
Province of Ontario 102331 4 826 561 891 6 101451 5982 70807 5 6 769 14 1900 70815 1158 70448 1079 70761 8739 34816 1616
Manitoba    59293 1 86 487 574 0 59293 1457 4123 3 16 86 38 0 4123 82 5591 80 4123 569 5397 107
Province of Saskatchewan 31759 2 482 295 779 0 31723 1766 6798 1 21 233 110 0 6798 144 6798 191 6798 1052 6787 315
Province of Alberta 97851 10 1839 855 2704 3 76546 3726 40168 8 190 971 277 0 40156 462 40142 635 39716 4588 40168 1571
Prairies 188903 13 2407 1637 4057 3 167562 6949 51089 12 227 1290 425 0 51077 688 52531 906 50637 6209 52352 1993
British Columbia 218370 15 974 7 1443 94 212919 9485 30468 14 42 1176 355 193 30468 640 30464 755 29879 4674 29897 1016
Yukon 5497 1 5 2 14 7 5506 308 N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C.
Northwest Territories 2173 0 206 1 207 0 2132 231 139 0 1 3 0 0 139 3 139 0 2081 271 139 1
Nunavut 16910 0 403 7 410 0 16908 431 N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C.
Territories 24580 1 614 10 631 7 24546 970 201 0 1 7 0 0 201 7 201 0 2143 288 184 2
CANADA 720155 78 5132 10678 15841 225 656953 32147 191475 76 455 3827 930 2408 195162 3535 195646 3696 177254 23043 143974 5298

The data in the RVDSS report represent surveillance data available at the time of writing. Data not collected by reporting lab denoted by N.C.

Note: Included in the cumulative detections this season are 11 co-infections of influenza A and B (total of 22 detections) that are suspected to be associated with recent live attenuated influenza vaccine (LAIV) receipt. Co-infections known or reported to be associated with recent LAIV are removed by the submitting laboratory or by PHAC beginning in week 44 as they do not represent community transmission of seasonal influenza viruses.

The reporting laboratory previously listed as CHEO - Ottawa is now listed as EORLA to better reflect data submitted by this provider.

Specimens from Yukon (YT) are sent to reference laboratories in British Columbia and reported results reflect specimens identified as originating from YT.

The reporting laboratory previously listed as CHEO - Ottawa is now listed as EORLA to better reflect data submitted by this provider.

Results from British Columbia comprise of specimens from the following sites: BC Children's and Women's Hospital, Children's and Women's Hospital Laboratory, Fraser Health Medical Microbiology Laboratory, Island Health, Providence Health Care, Powell River Hospital, St. Paul's Hospital, Vancouver General Hospital, Victoria General Hospital, BCCDC Public Health Laboratory, Interior Health Authority sites and Northern Health Authority sites.

Delays in the reporting of data may cause data to change retrospectively. Due to these delays, the sum of weekly report totals do not add up to cumulative totals.

For British Columbia, only data from subtyped influenza A specimens are included in the weekly number of influenza detections. The sum of A(H1N1)pdm09, A(H3), and A(UnS) positive results may not equal the sum of total Flu A positive results.

Due to different testing protocols of laboratories across Canada, influenza A subtype detection counts may not be included in total influenza A detection counts, as some subtype detections are not available through routine testing but are subsequently reported if further subtype testing is conducted. In these instances, subtype counts do not reflect influenza A detections intended to be captured by routine surveillance, and are excluded from total detections and percent positivity.

Positive respiratory virus tests historical comparison

Figure 1: Positive respiratory virus tests (%) reported by participating laboratories in Canada by surveillance week compared to average and range from 2014-2015 to 2019-2020 season

Figure 1

Shaded area represents the maximum and minimum % of respiratory virus tests positive reported by week from seasons 2014-2015 to 2019-2020

Note: Data from week 11 of the 2019-2020 season onwards are excluded from the historical comparison due to the COVID-19 pandemic

Note: % Tests Positive scale changes across the dashed line

a Human coronavirus excludes human coronaviruses SARS-CoV, MERS-CoV and SARS-CoV-2; Includes seasonal human coronaviruses HCoV-229E, HCoV-OC43, HCoV-NL63, HCoV-HKU1.

Figure 1: Positive respiratory virus tests (%) reported by participating laboratories in Canada by surveillance week compared to average and range from 2014-2015 to 2019-2020 season
Week Week end 2021-2022 A% 2020-2021 A% Max A% Base Min A% Base Av A% Base 2021-2022 B% 2020-2021 B% Max B% Base Min B% Base Av B% Base 2021-2022 RSV% 2020-2021 RSV% Max RSV% Base Min RSV% Base Av RSV% Base 2021-2022 HPIV% 2020-2021 HPIV% Max HPIV% Base Min HPIV% Base Av HPIV% Base 2021-2022 ADV% 2020-2021 ADV% Max ADV% Base Min ADV% Base Av ADV% Base 2021-2022 HMPV% 2020-2021 HMPV% Max HMPV% Base Min HMPV% Base Av HMPV% Base 2021-2022 EV/RV% 2020-2021 EV/RV% Max EV/RV% Base Min EV/RV% Base Av EV/RV% Base 2021-2022 HCoV% 2020-2021 HCoV% Max HCoV% Base Min HCoV% Base Av HCoV% Base
35 2021-09-04 0.04 0.00 1.60 0.11 0.68 0.00 0.02 0.28 0.00 0.13 4.43 0.02 1.34 0.38 0.60 5.99 0.08 3.16 1.15 2.42 1.18 0.27 1.74 0.99 1.43 0.23 0.17 2.04 0.10 0.77 21.96 9.07 27.19 22.44 24.78 1.05 0.06 0.76 0.18 0.45
36 2021-09-11 0.01 0.00 2.11 0.23 0.98 0.00 0.00 0.55 0.00 0.15 6.61 0.04 1.09 0.22 0.57 4.93 0.20 3.31 1.35 2.32 1.15 0.40 2.85 1.42 1.87 0.24 0.06 0.84 0.10 0.48 18.59 8.13 30.69 23.30 26.31 0.62 0.00 0.38 0.12 0.22
37 2021-09-18 0.03 0.00 1.59 0.36 0.87 0.00 0.00 0.19 0.04 0.12 7.59 0.02 1.37 0.31 0.64 5.97 0.13 3.26 1.65 2.40 0.81 0.35 2.44 1.38 1.86 0.17 0.05 1.61 0.00 0.51 27.46 8.07 33.58 27.74 31.68 0.44 0.05 0.56 0.00 0.26
38 2021-09-25 0.00 0.02 2.15 0.43 1.16 0.00 0.00 0.21 0.00 0.14 7.16 0.10 1.24 0.37 0.64 4.73 0.07 2.87 1.92 2.33 0.82 0.58 2.04 1.11 1.63 0.37 0.02 1.43 0.06 0.47 33.19 15.67 39.57 32.80 35.33 0.67 0.00 1.36 0.06 0.43
39 2021-10-02 0.01 0.00 2.65 0.57 1.53 0.00 0.00 0.29 0.09 0.18 8.48 0.05 1.29 0.41 0.68 8.12 0.02 3.01 1.70 2.24 1.14 0.19 2.27 1.04 1.66 0.17 0.04 0.72 0.05 0.28 30.01 24.12 40.59 34.87 37.68 0.62 0.05 0.66 0.07 0.45
40 2021-10-09 0.00 0.00 2.17 1.01 1.58 0.02 0.00 0.20 0.05 0.11 8.53 0.07 1.39 0.34 0.67 8.19 0.02 3.28 1.90 2.43 1.31 0.44 2.25 1.39 1.82 0.16 0.00 0.92 0.05 0.34 26.26 16.62 41.29 33.00 35.43 0.57 0.09 1.08 0.22 0.58
41 2021-10-16 0.03 0.01 2.66 1.05 1.57 0.03 0.00 0.36 0.03 0.16 9.54 0.10 1.74 0.58 0.98 10.46 0.06 3.70 1.94 2.74 1.37 0.37 1.91 1.28 1.70 0.20 0.19 0.95 0.04 0.46 22.91 15.48 33.62 26.94 29.81 1.69 0.02 0.70 0.00 0.33
42 2021-10-23 0.03 0.00 2.96 0.77 1.92 0.02 0.00 0.45 0.05 0.25 8.18 0.07 2.11 0.63 1.14 10.01 0.06 3.89 2.64 3.20 2.54 0.47 2.38 1.47 1.86 0.15 0.06 0.89 0.15 0.38 22.16 13.60 32.62 24.54 27.82 1.07 0.00 1.18 0.20 0.49
43 2021-10-30 0.03 0.01 5.23 0.68 2.60 0.02 0.00 0.55 0.06 0.23 8.11 0.07 2.16 0.55 1.32 9.38 0.07 3.98 3.18 3.56 1.15 0.37 2.42 1.63 1.96 0.36 0.02 1.64 0.12 0.57 19.64 13.14 28.73 21.67 24.95 1.05 0.00 2.35 0.27 0.75
44 2021-11-06 0.10 0.04 8.42 1.08 3.39 0.10 0.03 0.71 0.12 0.31 7.82 0.05 3.35 0.83 1.92 10.28 0.03 4.81 2.94 3.70 1.42 0.22 2.88 1.18 2.20 0.77 0.13 1.08 0.23 0.47 21.45 9.23 23.82 16.75 21.34 2.21 0.00 2.59 0.21 0.88
45 2021-11-13 0.07 0.02 9.83 1.18 4.19 0.06 0.02 0.97 0.22 0.44 7.03 0.04 4.43 1.29 2.59 9.97 0.01 5.42 2.53 4.01 1.63 0.33 2.68 2.02 2.42 0.64 0.01 1.30 0.04 0.77 22.39 9.70 23.08 15.17 20.56 2.57 0.03 2.74 0.52 0.96
46 2021-11-20 0.10 0.03 13.95 1.42 5.47 0.06 0.01 1.49 0.09 0.58 7.18 0.06 6.33 1.38 3.29 8.29 0.04 5.72 1.62 4.19 2.51 0.30 2.90 1.99 2.53 0.99 0.04 1.43 0.18 0.79 21.37 9.02 22.77 15.28 19.27 2.99 0.03 3.32 0.46 1.25
47 2021-11-27 0.13 0.03 15.24 1.25 6.91 0.07 0.04 2.13 0.13 0.80 8.10 0.03 8.69 1.79 4.46 7.04 0.06 7.00 2.36 4.72 1.94 0.32 2.95 1.83 2.35 1.01 0.02 2.02 0.09 0.89 18.54 8.44 20.84 12.15 16.09 3.90 0.04 3.26 0.37 1.25
48 2021-12-04 0.19 0.04 18.07 0.76 9.40 0.15 0.01 3.18 0.08 1.20 8.92 0.02 9.47 3.11 5.72 5.78 0.02 6.14 3.03 4.18 1.89 0.35 3.34 1.66 2.48 1.48 0.02 1.94 0.31 1.08 16.64 7.94 16.72 12.69 13.83 4.94 0.02 4.30 1.00 2.04
49 2021-12-11 0.23 0.03 19.52 1.43 11.41 0.05 0.01 4.21 0.19 1.60 10.09 0.06 12.26 4.87 7.12 3.97 0.00 5.65 2.94 4.19 2.48 0.54 3.03 1.84 2.49 1.22 0.05 2.80 0.49 1.46 14.57 6.21 16.32 10.72 13.07 6.58 0.05 5.19 0.84 2.52
50 2021-12-18 0.23 0.01 26.42 1.97 14.27 0.02 0.01 7.95 0.15 2.55 10.78 0.07 13.19 5.39 7.93 3.23 0.06 5.95 2.54 4.27 2.72 0.51 3.27 1.49 2.45 1.08 0.02 3.32 0.46 1.70 12.40 6.62 13.85 8.43 10.90 7.26 0.11 6.04 1.54 3.16
51 2021-12-25 0.18 0.00 28.53 2.27 16.81 0.02 0.01 10.44 0.19 3.30 8.97 0.07 15.23 6.52 9.27 3.01 0.04 6.71 2.94 3.95 2.54 0.58 3.20 1.36 2.04 1.20 0.04 4.39 0.37 2.44 9.95 5.65 14.18 8.81 10.48 8.11 0.05 6.68 1.87 3.72
52 2022-01-01 0.09 0.00 33.97 3.30 20.41 0.01 0.00 12.73 0.23 4.07 6.72 0.01 17.80 6.83 10.39 2.13 0.03 5.08 2.87 3.75 1.92 0.48 2.59 1.20 1.76 1.00 0.11 3.81 0.41 2.44 7.71 6.53 14.41 6.24 9.23 10.33 0.07 6.73 2.78 4.75
1 2022-01-08 0.08 0.00 30.93 4.58 19.55 0.00 0.00 10.34 0.22 3.86 5.26 0.04 15.62 7.12 10.17 1.84 0.12 5.08 2.68 3.34 1.84 0.81 2.67 0.85 1.54 0.72 0.06 4.45 0.28 2.70 5.71 5.43 11.09 4.36 7.42 9.27 0.12 7.77 3.07 5.16
2 2022-01-15 0.11 0.00 26.80 5.46 19.10 0.01 0.00 11.01 0.29 3.91 4.32 0.07 14.05 6.60 9.63 1.19 0.08 4.12 2.46 3.05 1.13 0.82 2.15 0.87 1.37 0.38 0.03 4.76 0.42 2.66 3.98 5.18 9.55 4.31 6.79 7.46 0.16 7.89 2.84 5.44
3 2022-01-22 0.04 0.01 28.20 9.13 18.94 0.01 0.01 12.75 0.35 4.69 3.42 0.03 15.56 6.72 10.32 0.76 0.05 3.25 2.59 2.82 1.34 0.40 2.10 1.15 1.45 0.24 0.11 5.56 0.47 3.13 3.12 3.56 8.42 4.44 6.01 4.97 0.26 7.90 4.17 6.11
4 2022-01-29 0.05 0.00 27.01 12.34 18.81 0.00 0.00 12.74 0.41 5.15 2.33 0.05 15.88 7.02 11.23 0.64 0.06 3.12 1.77 2.55 1.18 0.46 1.83 1.11 1.49 0.23 0.12 5.19 0.55 3.01 2.60 3.87 9.04 4.89 6.41 3.92 0.16 7.86 3.79 6.08
5 2022-02-05 0.03 0.00 23.66 15.78 19.14 0.01 0.00 14.84 0.41 5.76 2.19 0.04 16.33 7.17 11.49 0.48 0.06 3.48 1.70 2.39 1.57 0.29 1.93 1.36 1.62 0.25 0.16 5.70 0.58 3.29 3.02 4.76 9.79 6.06 6.94 2.83 0.13 8.49 4.55 6.84
6 2022-02-12 0.04 0.02 23.36 15.63 18.79 0.01 0.00 16.23 0.44 6.21 2.10 0.08 15.79 6.52 11.70 0.51 0.10 2.89 1.57 2.19 1.44 0.54 1.74 1.25 1.51 0.42 0.19 5.57 0.65 3.39 3.86 5.08 9.89 6.16 6.98 3.01 0.20 8.57 3.48 6.75
7 2022-02-19 0.02 0.00 24.22 15.48 18.52 0.00 0.00 17.02 0.35 6.54 2.16 0.02 15.53 6.95 11.26 0.44 0.00 3.20 1.42 2.12 1.52 0.49 1.61 1.30 1.51 0.44 0.14 6.05 1.45 3.94 4.46 5.56 8.95 6.00 7.02 3.24 0.13 8.02 4.35 6.54
8 2022-02-26 0.06 0.00 28.62 12.42 18.53 0.02 0.00 16.79 0.45 6.60 2.12 0.05 15.47 6.64 10.63 0.73 0.16 3.21 1.31 2.25 1.85 0.72 2.00 1.38 1.67 0.53 0.04 5.74 1.19 4.08 6.31 4.77 8.35 5.20 6.94 3.67 0.14 8.29 4.21 6.60
9 2022-03-05 0.12 0.00 29.30 11.04 18.35 0.00 0.00 15.45 0.74 6.24 2.50 0.01 15.62 6.54 10.04 0.60 0.07 3.35 1.41 2.44 1.90 0.86 1.92 1.09 1.40 0.40 0.11 6.42 1.87 4.38 7.80 5.48 9.04 5.73 7.75 3.32 0.36 8.01 5.09 6.86
10 2022-03-12 0.16 0.00 29.65 8.51 16.81 0.00 0.00 14.86 0.81 6.41 3.10 0.00 14.97 6.35 9.37 0.68 0.06 4.18 1.19 2.69 1.98 0.38 2.23 1.50 1.78 0.51 0.00 6.74 2.26 4.80 8.24 4.62 10.16 5.55 8.08 3.86 0.34 8.34 4.28 7.01
11 2022-03-19 0.26 0.01 24.27 6.74 14.55 0.01 0.00 13.11 1.05 6.86 3.71 0.03 12.11 6.29 8.83 0.66 0.19 4.58 1.35 3.00 1.88 0.63 2.32 1.23 1.69 0.59 0.11 7.94 2.52 4.71 8.97 4.08 9.45 7.15 8.24 3.25 0.33 8.02 4.35 6.23
12 2022-03-26 0.86 0.00 20.91 5.51 12.67 0.00 0.00 11.53 1.51 7.43 3.79 0.07 10.70 6.46 8.12 1.05 0.00 4.95 1.26 3.34 1.71 0.35 2.13 1.84 1.97 0.77 0.14 6.69 3.65 5.19 9.52 4.61 10.26 8.71 9.66 4.38 0.54 6.99 3.95 5.69
13 2022-04-02 1.52 0.00 18.09 4.67 11.66 0.00 0.00 12.55 1.98 7.90 4.00 0.04 9.32 6.45 7.64 1.39 0.18 5.21 1.48 3.68 2.30 0.35 2.12 1.37 1.70 1.28 0.07 6.90 3.95 5.18 8.49 4.86 12.58 7.69 10.26 4.45 0.30 8.16 3.65 5.46
14 2022-04-09 2.48 0.00 17.83 3.21 9.98 0.01 0.00 13.12 2.12 7.88 4.05 0.08 8.09 5.32 6.44 1.18 0.00 6.26 1.67 4.31 1.74 0.34 2.31 1.50 1.86 1.45 0.04 7.70 4.14 6.00 9.25 5.49 13.59 8.60 12.03 4.24 0.41 7.79 3.84 4.87
15 2022-04-16 3.84 0.01 17.75 2.18 8.72 0.02 0.00 12.22 2.00 7.55 3.46 0.11 7.73 4.64 5.97 1.35 0.12 6.94 1.97 4.61 1.71 0.98 2.62 1.64 2.12 1.52 0.04 7.47 3.81 5.94 9.14 8.23 14.59 9.44 13.16 4.97 1.07 5.52 3.23 4.24
16 2022-04-23 6.98 0.00 13.67 2.13 6.80 0.01 0.00 11.94 2.56 7.68 2.97 0.23 6.64 4.40 5.40 2.19 0.16 7.88 1.97 5.20 1.84 0.82 3.21 1.85 2.32 2.18 0.04 7.16 3.71 5.90 8.20 6.18 16.10 10.84 13.78 4.91 0.69 4.99 3.51 4.32
17 2022-04-30 9.67 0.00 11.31 1.28 5.34 0.01 0.00 12.18 2.94 7.49 2.84 0.21 5.79 3.52 4.58 1.78 0.61 8.67 2.07 6.01 1.37 0.35 2.54 1.70 2.10 2.40 0.04 6.58 4.68 5.64 7.74 7.23 18.29 13.64 16.16 4.91 0.96 4.11 2.54 3.37
18 2022-05-07 11.28 0.00 8.05 0.89 3.95 0.01 0.00 10.20 2.62 6.31 2.34 0.27 4.86 2.78 3.62 2.07 0.08 8.42 3.19 5.85 1.32 0.77 2.89 1.36 2.23 2.55 0.00 6.37 3.14 5.08 7.41 5.63 20.03 12.39 16.31 4.80 0.69 4.00 2.36 3.09
19 2022-05-14 12.58 0.00 8.27 0.90 3.26 0.05 0.00 9.33 2.12 5.72 2.40 0.24 4.61 2.30 3.16 2.71 0.21 9.09 3.67 5.95 1.52 0.98 2.63 1.66 2.07 3.63 0.04 7.46 3.23 4.80 8.36 7.40 21.71 15.70 19.30 4.37 0.86 3.71 1.58 2.36
20 2022-05-21 10.28 0.00 6.42 0.56 2.33 0.07 0.01 7.59 1.12 4.89 2.52 0.18 4.46 1.59 2.66 3.29 0.05 8.60 3.90 6.75 1.68 0.71 3.35 1.79 2.44 4.79 0.14 6.85 2.55 4.99 9.06 8.13 24.52 16.67 19.75 4.53 0.75 3.31 1.87 2.49
21 2022-05-28 9.73 0.01 4.40 0.12 1.67 0.04 0.00 5.43 0.91 3.93 2.25 0.25 4.10 1.23 2.13 3.47 0.25 9.56 6.00 7.27 1.95 1.05 3.51 1.41 2.39 5.69 0.10 6.80 3.22 4.63 10.26 6.36 25.86 16.41 21.07 3.64 1.17 2.37 1.10 1.74
22 2022-06-04 8.38 0.00 2.98 0.29 1.35 0.06 0.00 3.51 0.53 2.51 2.40 0.26 3.72 0.86 1.71 3.32 0.35 8.71 5.94 6.99 1.56 0.82 3.45 1.91 2.79 5.22 0.11 5.39 2.43 3.84 9.14 4.59 23.76 17.55 20.50 3.78 0.69 2.06 0.56 1.23
23 2022-06-11 6.88 0.00 2.55 0.56 1.07 0.13 0.00 2.78 0.32 1.79 2.10 0.18 3.38 0.77 1.56 4.59 0.17 9.74 5.14 6.94 2.26 0.71 2.72 1.69 2.18 5.35 0.06 4.49 2.25 3.18 13.26 6.14 23.65 18.15 21.01 2.93 0.74 1.86 0.47 1.08
24 2022-06-18 4.95 0.02 2.82 0.30 0.93 0.06 0.00 2.11 0.27 1.32 1.95 0.32 3.22 0.50 1.37 4.70 1.52 8.25 5.76 7.01 2.36 1.43 3.80 1.96 2.89 6.29 0.12 3.48 1.85 2.67 14.36 8.01 26.76 20.72 23.68 3.09 0.62 1.54 0.88 1.19
25 2022-06-25 2.95 0.00 2.78 0.32 0.97 0.08 0.00 1.35 0.32 0.91 1.82 0.31 2.91 0.42 1.05 5.58 2.36 7.61 4.34 6.13 1.91 1.49 3.30 1.80 2.63 6.96 0.00 4.18 0.89 2.01 16.62 8.12 26.73 20.65 23.03 3.60 0.49 1.55 0.66 1.09
26 2022-07-02 2.19 0.00 2.04 0.48 1.08 0.06 0.00 1.08 0.21 0.73 1.45 0.27 2.06 0.26 0.79 5.11 2.54 8.72 4.97 6.42 2.87 1.16 3.49 1.55 2.43 6.29 0.12 4.28 0.60 2.05 16.96 9.31 30.25 22.65 25.25 2.02 0.53 1.77 0.36 0.76
27 2022-07-09 1.19 0.00 1.90 0.30 1.06 0.04 0.00 1.04 0.06 0.42 1.47 0.43 1.85 0.30 0.81 5.67 4.19 8.37 3.78 6.03 2.68 1.08 4.02 1.86 2.67 7.22 0.00 2.35 1.08 1.69 16.40 12.79 29.34 21.60 24.75 1.89 0.87 1.29 0.30 0.68
28 2022-07-16 0.74 0.00 1.35 0.34 0.65 0.05 0.00 0.59 0.00 0.26 1.40 0.11 1.48 0.35 0.67 5.78 2.41 8.38 3.40 5.36 2.54 1.31 3.02 1.87 2.55 4.88 0.07 2.28 0.44 1.22 16.12 14.81 25.35 22.07 23.65 1.07 0.17 1.17 0.30 0.60
29 2022-07-23 0.63 0.00 1.38 0.47 0.93 0.05 0.00 0.40 0.00 0.15 1.48 0.82 1.28 0.11 0.48 4.49 3.95 6.57 3.76 4.83 2.47 1.03 3.00 1.78 2.28 3.65 0.06 1.58 0.66 0.94 13.96 18.26 22.73 20.04 21.41 0.64 0.89 1.32 0.17 0.69
30 2022-07-30 0.37 0.04 1.29 0.40 0.75 0.02 0.00 0.31 0.06 0.15 1.08 0.93 1.96 0.14 0.64 4.87 2.08 7.25 2.75 4.60 2.71 0.98 2.97 1.60 2.26 4.03 0.12 1.47 0.24 0.87 11.52 22.88 21.00 18.90 20.22 1.38 1.07 1.33 0.27 0.53
31 2022-08-06 0.33 0.00 1.57 0.40 0.92 0.01 0.00 0.36 0.00 0.19 1.07 1.36 1.42 0.31 0.68 4.22 1.62 6.03 2.95 4.17 2.74 0.69 2.57 1.65 2.15 3.54 0.19 1.35 0.71 0.98 11.48 29.00 21.14 17.43 19.41 0.76 0.41 0.67 0.26 0.45

Number of positive respiratory virus tests

Figure 2: Number of positive respiratory virus tests reported by participating laboratories in Canada by surveillance week
Figure 2
Figure 2: Number of positive respiratory virus tests reported by participating laboratories in Canada by surveillance week
Week ParaInfluenza Adenovirus Human metapneumovirus Enterovirus/Rhinovirus Coronavirus Respiratory syncytial virus Influenza
35 158 31 6 557 21 286 3
36 142 33 7 510 14 478 1
37 207 28 6 916 11 628 3
38 179 31 14 1,180 17 649 0
39 329 46 7 1,147 17 771 1
40 313 50 6 920 17 867 2
41 374 49 7 743 48 932 6
42 402 102 6 787 36 941 6
43 391 48 15 729 35 1,033 7
44 405 56 30 777 67 1,134 32
45 447 73 29 932 89 1,144 22
46 366 111 44 869 104 1,075 26
47 337 91 48 795 152 1,236 33
48 275 91 72 736 187 1,526 63
49 219 139 69 758 252 1,849 54
50 189 163 64 684 277 2,268 56
51 165 139 66 508 254 2,414 58
52 109 99 52 374 331 1,906 29
1 93 95 37 280 312 1,378 25
2 62 54 18 178 251 926 28
3 34 60 11 133 154 625 9
4 28 53 10 109 126 355 8
5 19 62 10 115 78 325 6
6 18 51 15 128 70 275 6
7 14 48 14 134 66 266 2
8 22 56 16 179 72 241 9
9 19 61 13 233 71 264 14
10 21 62 16 240 83 305 17
11 20 57 18 252 67 346 27
12 34 56 26 289 104 367 93
13 48 80 45 274 110 420 179
14 43 64 54 310 116 446 314
15 52 67 60 315 153 415 511
16 84 72 86 293 155 414 1,079
17 92 74 131 357 186 459 1,738
18 123 82 159 396 184 390 2,092
19 115 69 165 345 145 370 2,223
20 141 76 218 374 144 367 1,705
21 157 93 272 447 105 313 1,567
22 147 73 244 396 108 322 1,323
23 160 84 199 413 87 254 996
24 142 77 205 379 91 215 630
25 167 62 225 435 110 190 383
26 146 88 193 422 60 156 295
27 163 83 224 407 56 156 155
28 167 79 152 410 31 142 94
29 131 77 114 351 19 139 72
30 136 81 121 279 39 99 40
31 91 59 77 248 16 70 24

Positive influenza (Flu) tests

Figure 3: Positive influenza (Flu) tests (%) in Canada by region by surveillance week
Figure 3
Figure 3: Positive influenza (Flu) tests (%) in Canada by region by surveillance week
Week Week end Can Tests Can A% Can B% Atl Tests Atl A% Atl B% QC Tests QC A% QC B% ON Tests ON A% ON B% Pr Tests Pr A% Pr B% BC Tests BC A% BC B% Terr Tests Terr A% Terr B%
35 2021-09-04 7061 0.04 0.00 625 0.00 0.00 848 0.12 0.00 1305 0.00 0.00 2770 0.04 0.00 1025 0.10 0.00 488 0.00 0.00
36 2021-09-11 7939 0.01 0.00 675 0.00 0.00 1369 0.00 0.00 1224 0.08 0.00 3229 0.00 0.00 930 0.00 0.00 512 0.00 0.00
37 2021-09-18 9256 0.03 0.00 1009 0.00 0.00 1718 0.00 0.00 1543 0.06 0.00 3390 0.06 0.00 985 0.00 0.00 611 0.00 0.00
38 2021-09-25 9725 0.00 0.00 1141 0.00 0.00 1502 0.00 0.00 1647 0.00 0.00 3536 0.00 0.00 1192 0.00 0.00 707 0.00 0.00
39 2021-10-02 9608 0.01 0.00 1052 0.00 0.00 1089 0.00 0.00 1954 0.00 0.00 3415 0.03 0.00 1611 0.00 0.00 487 0.00 0.00
40 2021-10-09 10699 0.00 0.02 799 0.00 0.00 1641 0.00 0.12 2059 0.00 0.00 3793 0.00 0.00 1823 0.00 0.00 584 0.00 0.00
41 2021-10-16 10290 0.03 0.03 614 0.00 0.00 1704 0.00 0.18 1950 0.05 0.00 3540 0.03 0.00 1904 0.05 0.00 578 0.00 0.00
42 2021-10-23 12383 0.03 0.02 634 0.00 0.00 2050 0.00 0.00 2269 0.04 0.00 4435 0.00 0.00 2440 0.08 0.04 555 0.18 0.18
43 2021-10-30 13261 0.03 0.02 1086 0.00 0.00 2119 0.05 0.00 2143 0.00 0.00 4565 0.04 0.00 2920 0.00 0.07 428 0.23 0.23
44 2021-11-06 15353 0.10 0.10 577 0.00 0.00 2323 0.00 0.00 2473 0.04 0.00 4923 0.00 0.00 4625 0.30 0.28 432 0.23 0.69
45 2021-11-13 17330 0.07 0.06 1195 0.00 0.00 2441 0.04 0.00 2835 0.04 0.00 5062 0.06 0.00 5054 0.14 0.18 743 0.00 0.13
46 2021-11-20 16221 0.10 0.06 1826 0.00 0.00 2261 0.00 0.04 2619 0.19 0.00 4733 0.04 0.00 4339 0.21 0.18 443 0.23 0.00
47 2021-11-27 16701 0.13 0.07 2042 0.05 0.05 2584 0.12 0.04 2979 0.10 0.00 4626 0.00 0.00 4200 0.33 0.24 270 0.00 0.00
48 2021-12-04 18356 0.19 0.15 3195 0.13 0.09 2471 0.08 0.04 3068 0.16 0.00 4556 0.04 0.00 4846 0.45 0.50 220 0.00 0.00
49 2021-12-11 19816 0.23 0.05 3417 0.09 0.00 2880 0.31 0.14 3420 0.23 0.00 4620 0.24 0.00 5172 0.27 0.10 307 0.00 0.00
50 2021-12-18 22397 0.23 0.02 1860 0.27 0.00 2759 0.14 0.00 3883 0.21 0.00 4732 0.11 0.02 8638 0.35 0.03 525 0.00 0.00
51 2021-12-25 28377 0.18 0.02 1238 0.00 0.00 3049 0.59 0.07 4030 0.07 0.00 5230 0.15 0.00 14257 0.16 0.02 573 0.00 0.17
52 2022-01-01 29528 0.09 0.01 1378 0.29 0.00 2560 0.00 0.00 3665 0.14 0.00 6257 0.13 0.02 13696 0.07 0.01 1972 0.00 0.00
1 2022-01-08 28332 0.08 0.00 967 0.00 0.00 2249 0.18 0.00 3668 0.03 0.00 7645 0.17 0.00 11791 0.05 0.01 2012 0.00 0.00
2 2022-01-15 23595 0.11 0.01 1045 0.19 0.00 1400 0.21 0.00 2903 0.03 0.00 6752 0.16 0.00 9996 0.08 0.03 1499 0.00 0.00
3 2022-01-22 19510 0.04 0.01 1195 0.00 0.00 1223 0.16 0.00 2591 0.00 0.08 5562 0.07 0.00 8275 0.01 0.00 664 0.00 0.00
4 2022-01-29 16409 0.05 0.00 1099 0.00 0.00 1136 0.26 0.00 2367 0.00 0.00 4563 0.07 0.00 6638 0.03 0.00 606 0.00 0.00
5 2022-02-05 15927 0.03 0.01 1058 0.00 0.00 844 0.12 0.00 2126 0.00 0.05 3954 0.10 0.00 6671 0.00 0.00 1274 0.00 0.00
6 2022-02-12 13843 0.04 0.01 1069 0.00 0.00 985 0.10 0.00 1981 0.00 0.00 2995 0.03 0.00 5917 0.05 0.02 896 0.00 0.00
7 2022-02-19 13103 0.02 0.00 1094 0.00 0.00 832 0.00 0.00 1941 0.05 0.00 2721 0.04 0.00 5451 0.00 0.00 1064 0.00 0.00
8 2022-02-26 12142 0.06 0.02 1177 0.00 0.00 875 0.34 0.11 1736 0.17 0.00 2419 0.04 0.00 5256 0.00 0.02 679 0.00 0.00
9 2022-03-05 11235 0.12 0.00 1090 0.00 0.00 911 0.00 0.00 1843 0.11 0.00 2603 0.38 0.00 4242 0.05 0.00 546 0.00 0.00
10 2022-03-12 10704 0.16 0.00 1108 0.00 0.00 1040 0.29 0.00 1763 0.06 0.00 2556 0.35 0.00 3713 0.11 0.00 524 0.00 0.00
11 2022-03-19 10168 0.26 0.01 1097 0.00 0.00 902 0.44 0.00 1652 0.24 0.00 2581 0.54 0.00 3617 0.11 0.03 319 0.00 0.00
12 2022-03-26 10754 0.86 0.00 1247 0.08 0.00 1186 0.93 0.00 1766 0.28 0.00 2685 1.94 0.00 3491 0.66 0.00 379 0.26 0.00
13 2022-04-02 11757 1.52 0.00 1324 0.30 0.00 1484 3.44 0.00 1894 1.11 0.00 3216 2.46 0.00 3668 0.63 0.00 171 0.58 0.00
14 2022-04-09 12637 2.48 0.01 1272 0.63 0.08 1644 6.93 0.00 1874 1.17 0.00 4065 3.17 0.00 3620 0.91 0.00 162 4.32 0.00
15 2022-04-16 13239 3.84 0.02 1093 1.65 0.00 1896 11.45 0.05 1905 2.10 0.05 4089 4.23 0.00 4116 1.09 0.00 140 11.43 0.00
16 2022-04-23 15435 6.98 0.01 1429 1.89 0.00 3060 19.61 0.03 1859 1.83 0.00 4531 6.51 0.00 4348 1.86 0.02 208 19.23 0.00
17 2022-04-30 17960 9.67 0.01 1738 5.01 0.06 4691 20.49 0.02 2162 4.12 0.00 4721 9.28 0.00 4427 2.58 0.00 221 21.27 0.00
18 2022-05-07 18525 11.28 0.01 2674 5.31 0.00 4751 26.56 0.04 2183 3.39 0.00 4475 10.30 0.00 4182 2.18 0.00 260 23.08 0.00
19 2022-05-14 17606 12.58 0.05 1509 7.09 0.13 5434 24.22 0.11 2065 6.44 0.00 4435 10.46 0.00 3886 2.44 0.00 277 36.10 0.00
20 2022-05-21 16463 10.28 0.07 1528 7.53 0.00 4707 17.08 0.25 2117 5.67 0.00 4105 11.52 0.00 3699 2.87 0.00 307 24.43 0.00
21 2022-05-28 16036 9.73 0.04 2019 6.24 0.00 4551 15.36 0.11 1986 4.98 0.00 3762 11.43 0.03 3500 3.34 0.00 218 41.28 0.00
22 2022-06-04 15683 8.38 0.06 2143 7.00 0.00 4607 11.87 0.20 1876 4.48 0.00 3489 9.26 0.00 3274 3.88 0.00 294 28.23 0.00
23 2022-06-11 14192 6.88 0.13 1615 8.98 0.00 4924 7.35 0.37 1183 3.55 0.08 3248 7.85 0.00 2979 3.83 0.00 243 24.28 0.00
24 2022-06-18 12567 4.95 0.06 1178 14.09 0.00 4333 4.87 0.16 1162 1.98 0.00 2904 4.27 0.00 2805 2.42 0.04 185 16.22 0.00
25 2022-06-25 12656 2.95 0.08 1199 6.26 0.00 4679 2.78 0.21 1261 1.27 0.00 2602 3.07 0.00 2773 2.20 0.00 142 7.75 0.00
26 2022-07-02 13128 2.19 0.06 1253 3.83 0.00 4996 1.78 0.14 1195 0.92 0.08 2575 3.03 0.00 3018 1.89 0.00 91 4.40 0.00
27 2022-07-09 12622 1.19 0.04 1085 3.59 0.00 4609 0.69 0.11 1343 0.60 0.00 2472 1.05 0.00 2948 1.49 0.00 165 0.61 0.00
28 2022-07-16 11840 0.74 0.05 1265 1.58 0.00 3853 0.57 0.05 1357 0.52 0.00 2266 0.35 0.00 2952 0.98 0.14 147 1.36 0.00
29 2022-07-23 10682 0.63 0.05 1225 0.65 0.00 3038 0.33 0.13 1230 0.16 0.00 2466 1.18 0.00 2557 0.70 0.04 166 0.00 0.00
30 2022-07-30 10167 0.37 0.02 988 0.40 0.00 2721 0.33 0.04 1230 0.33 0.00 2523 0.40 0.00 2537 0.43 0.04 168 0.00 0.00
31 2022-08-06 6937 0.33 0.01 896 0.00 0.11 N.A. N.A. N.A. 1046 0.10 0.00 2511 0.52 0.00 2366 0.38 0.00 118 0.00 0.00

Positive respiratory syncytial virus (RSV) tests

Figure 4: Positive respiratory syncytial virus (RSV) tests (%) in Canada by region by surveillance week
Figure 4
Figure 4: Positive respiratory syncytial virus (RSV) tests (%) in Canada by region by surveillance week
Week Week end Can Tests RSV% Atl Tests RSV% QC Tests RSV% ON Tests RSV% Pr Tests RSV% BC Tests RSV% Terr Tests RSV%
35 2021-09-04 6453 4.43 613 0.00 693 37.95 1277 1.49 2358 0.04 1025 0.29 487 0.00
36 2021-09-11 7236 6.61 671 0.60 1069 39.85 1187 3.12 2798 0.14 930 0.54 581 0.34
37 2021-09-18 8272 7.59 997 0.40 1310 40.76 1499 5.07 2872 0.24 985 0.71 609 0.00
38 2021-09-25 9062 7.16 1135 0.00 1356 41.67 1612 3.97 3061 0.26 1192 1.01 706 0.00
39 2021-10-02 9089 8.48 1052 0.10 1104 53.53 1913 7.42 2923 0.44 1611 1.49 486 0.00
40 2021-10-09 10159 8.53 792 0.38 1583 39.36 2015 9.43 3364 0.65 1823 1.59 582 0.00
41 2021-10-16 9769 9.54 608 0.16 1676 42.78 1867 8.36 3136 0.61 1904 2.00 578 0.17
42 2021-10-23 11503 8.18 581 0.17 1845 33.88 2199 9.55 3884 0.85 2440 2.95 554 0.00
43 2021-10-30 12735 8.11 965 0.10 2121 31.02 2105 9.88 4197 0.88 2920 4.35 427 0.47
44 2021-11-06 14502 7.82 564 1.24 2048 26.46 2421 10.45 4429 1.45 4612 5.77 428 0.47
45 2021-11-13 16275 7.03 837 0.84 2239 18.49 2767 9.97 4670 1.50 5024 7.48 738 0.14
46 2021-11-20 14979 7.18 1259 2.54 2064 12.74 2556 13.38 4345 1.91 4312 8.23 443 0.00
47 2021-11-27 15251 8.10 1607 2.68 2132 11.16 2907 13.62 4177 3.26 4160 10.17 268 0.00
48 2021-12-04 17099 8.92 2884 2.67 2164 8.27 3002 14.69 4026 3.80 4806 13.82 217 5.53
49 2021-12-11 18329 10.09 2979 3.63 2519 6.95 3354 19.11 4038 5.08 5134 13.63 305 6.56
50 2021-12-18 21031 10.78 1442 8.18 2354 5.61 3813 15.53 4286 6.07 8611 13.10 525 7.24
51 2021-12-25 26919 8.97 947 6.65 2467 4.82 4029 13.73 4650 7.91 14257 8.86 569 8.44
52 2022-01-01 28354 6.72 1378 4.43 1916 3.60 3664 10.15 5542 7.89 13884 6.64 1970 2.28
1 2022-01-08 26181 5.26 983 6.61 1708 2.93 3668 5.97 6387 5.10 11428 5.90 2007 2.19
2 2022-01-15 21431 4.32 824 6.67 1142 2.10 2903 4.79 5758 4.10 9306 4.82 1498 1.54
3 2022-01-22 18270 3.42 1187 3.54 947 1.37 2591 3.24 5028 3.30 7814 3.90 703 2.13
4 2022-01-29 15236 2.33 935 3.32 827 1.21 2367 1.61 4146 3.30 6356 2.03 605 1.65
5 2022-02-05 14854 2.19 859 1.51 667 1.05 2124 1.65 3573 3.16 6395 2.17 1236 1.46
6 2022-02-12 13108 2.10 998 1.70 749 1.47 1980 0.91 2701 4.44 5784 1.64 896 1.56
7 2022-02-19 12301 2.16 997 1.60 539 0.74 1940 0.98 2449 5.39 5366 1.60 1010 0.89
8 2022-02-26 11383 2.12 1018 1.57 581 0.34 1735 1.21 2164 5.04 5206 1.67 679 0.88
9 2022-03-05 10559 2.50 982 1.83 734 0.95 1843 1.03 2339 5.81 4115 1.92 546 0.92
10 2022-03-12 9854 3.10 914 1.86 720 0.42 1763 1.08 2324 8.09 3609 1.94 524 1.53
11 2022-03-19 9332 3.71 894 2.80 708 0.85 1652 1.27 2280 9.12 3479 2.07 319 4.39
12 2022-03-26 9678 3.79 1027 1.27 828 0.36 1765 0.96 2336 10.96 3343 1.76 379 5.01
13 2022-04-02 10506 4.00 1114 0.81 1012 0.10 1894 0.63 2870 10.77 3448 1.97 168 12.50
14 2022-04-09 11013 4.05 890 1.01 1105 0.18 1873 0.64 3569 9.47 3416 1.90 160 12.50
15 2022-04-16 12005 3.46 1063 1.98 1430 0.21 1908 1.21 3506 8.81 3960 1.21 138 7.97
16 2022-04-23 13952 2.97 1336 1.27 2447 0.12 1864 0.43 4000 7.65 4098 1.49 207 9.18
17 2022-04-30 16143 2.84 1657 1.33 3738 0.27 2162 1.43 4142 7.56 4223 1.47 221 9.50
18 2022-05-07 16651 2.34 2374 0.97 3807 0.13 2183 0.78 3988 6.42 4039 1.36 260 13.08
19 2022-05-14 15413 2.40 1438 1.32 3959 0.13 2065 0.77 3932 5.44 3743 1.66 276 19.57
20 2022-05-21 14561 2.52 1419 1.69 3481 0.14 2117 1.13 3539 4.92 3699 1.62 306 26.14
21 2022-05-28 13922 2.25 1836 1.31 3205 0.16 1985 1.21 3332 3.78 3346 1.52 218 38.07
22 2022-06-04 13431 2.40 1995 2.01 3026 0.20 1876 1.76 3063 4.44 3177 1.48 294 20.41
23 2022-06-11 12076 2.10 1507 1.86 3360 0.27 1183 1.61 2888 3.19 2896 1.66 242 23.97
24 2022-06-18 11042 1.95 1038 2.12 3298 0.24 1163 1.63 2633 3.23 2725 1.43 185 22.70
25 2022-06-25 10447 1.82 1064 2.54 2981 0.77 1260 1.51 2304 1.91 2696 1.34 142 28.87
26 2022-07-02 10779 1.45 1120 2.05 3182 0.69 1195 1.67 2296 2.18 2895 0.73 91 21.98
27 2022-07-09 10608 1.47 922 3.36 3073 0.68 1343 1.27 2275 1.54 2830 0.95 165 15.15
28 2022-07-16 10123 1.40 912 2.96 2787 1.00 1356 2.06 2077 1.01 2844 0.98 147 6.80
29 2022-07-23 9379 1.48 1090 2.66 2220 1.13 1230 1.38 2233 1.79 2440 0.94 166 3.01
30 2022-07-30 9147 1.08 957 1.25 2063 1.45 1230 0.89 2321 1.12 2408 0.66 168 2.38
31 2022-08-06 6551 1.07 830 1.33 N.A. N.A. 1046 1.43 2353 1.19 2205 0.45 117 5.13

Positive human parainfluenza virus (HPIV) tests

Figure 5: Positive human parainfluenza virus (HPIV) tests (%) in Canada by region by surveillance week
Figure 5
Figure 5: Positive human parainfluenza virus (HPIV) tests (%) in Canada by region by surveillance week
Week Week End Can Tests HPIV% Atl Tests HPIV% QC Tests HPIV% ON Tests HPIV% Pr Tests HPIV% BC Tests HPIV%
35 2021-09-04 2638 5.99 580 1.38 138 5.07 857 14.47 740 1.89 315 1.59
36 2021-09-11 2882 4.93 653 2.91 149 4.03 805 11.55 953 1.57 317 2.84
37 2021-09-18 3467 5.97 978 3.89 139 0.72 1100 10.73 858 3.03 386 6.22
38 2021-09-25 3783 4.73 1083 3.69 222 0.45 1113 8.18 857 2.33 506 5.34
39 2021-10-02 4051 8.12 1070 4.86 232 1.72 1461 13.07 766 5.87 517 7.16
40 2021-10-09 3822 8.19 721 6.38 314 1.27 1542 12.39 717 5.58 524 6.11
41 2021-10-16 3574 10.46 543 6.45 335 0.90 1461 13.76 725 7.31 510 16.08
42 2021-10-23 4016 10.01 628 5.41 454 0.44 1631 11.77 768 8.20 531 20.90
43 2021-10-30 4170 9.38 822 2.92 414 0.97 1541 11.29 778 8.10 608 20.72
44 2021-11-06 3941 10.28 415 10.84 293 0.34 1690 10.00 834 8.27 708 17.09
45 2021-11-13 4484 9.97 708 6.78 317 0.95 1772 8.47 865 9.71 819 19.78
46 2021-11-20 4413 8.29 597 4.02 349 0.57 1735 6.80 975 9.33 756 17.33
47 2021-11-27 4786 7.04 575 4.35 475 0.84 1968 5.95 1057 7.85 709 15.23
48 2021-12-04 4761 5.78 668 3.29 355 1.13 2055 3.94 953 7.66 723 13.14
49 2021-12-11 5520 3.97 684 1.02 317 0.63 2722 2.94 1063 7.34 733 7.09
50 2021-12-18 5852 3.23 677 2.51 356 1.69 3058 1.60 1020 6.18 741 7.29
51 2021-12-25 5476 3.01 311 0.64 383 3.39 3031 1.55 997 6.12 751 5.59
52 2022-01-01 5124 2.13 132 1.52 287 0.35 2746 0.87 1198 3.92 760 4.61
1 2022-01-08 5049 1.84 59 1.69 228 1.32 2757 0.62 1439 2.64 558 5.91
2 2022-01-15 5216 1.19 66 3.03 776 0.26 2166 0.32 1609 1.55 597 4.36
3 2022-01-22 4459 0.76 202 0.50 196 1.02 1892 0.26 1414 1.27 753 1.06
4 2022-01-29 4392 0.64 144 1.39 208 0.48 1846 0.27 1426 0.84 766 1.04
5 2022-02-05 3959 0.48 193 1.04 169 0.00 1623 0.12 1255 0.32 715 1.54
6 2022-02-12 3514 0.51 188 0.53 214 0.00 1486 0.20 972 0.51 651 1.38
7 2022-02-19 3164 0.44 233 0.00 166 0.60 1397 0.29 807 0.74 557 0.54
8 2022-02-26 3003 0.73 253 0.00 175 1.14 1262 0.16 732 1.09 579 1.73
9 2022-03-05 3181 0.60 206 0.49 190 1.05 1349 0.15 909 0.66 523 1.53
10 2022-03-12 3105 0.68 243 0.00 195 2.05 1266 0.16 864 0.58 531 1.69
11 2022-03-19 3039 0.66 245 0.82 245 0.41 1187 0.25 902 1.00 460 1.09
12 2022-03-26 3251 1.05 205 1.46 258 1.16 1288 0.78 914 0.55 580 2.24
13 2022-04-02 3445 1.39 227 1.32 251 3.59 1363 0.37 1025 1.27 577 3.12
14 2022-04-09 3648 1.18 196 1.53 332 3.01 1286 0.31 1284 1.64 544 0.92
15 2022-04-16 3855 1.35 206 1.46 419 3.10 1229 0.49 1306 1.99 694 0.58
16 2022-04-23 3829 2.19 277 0.36 273 6.59 1244 1.05 1370 2.48 660 2.58
17 2022-04-30 5180 1.78 849 2.36 630 1.27 1499 1.00 1429 2.17 769 2.34
18 2022-05-07 5951 2.07 1584 3.35 708 2.12 1401 0.71 1465 2.25 788 1.52
19 2022-05-14 4251 2.71 470 3.40 237 4.64 1412 1.13 1421 3.10 706 3.97
20 2022-05-21 4280 3.29 584 3.42 251 5.98 1460 2.53 1198 3.51 779 3.47
21 2022-05-28 4525 3.47 1090 4.86 191 6.81 1334 2.02 1122 3.12 775 3.48
22 2022-06-04 4432 3.32 1138 3.69 204 2.94 1230 2.60 1126 4.09 724 2.76
23 2022-06-11 3489 4.59 696 4.17 406 5.17 595 5.04 1132 5.21 651 3.23
24 2022-06-18 3023 4.70 267 3.37 406 6.65 589 6.45 1067 4.40 690 2.90
25 2022-06-25 2991 5.58 284 4.23 396 8.59 622 5.14 1032 6.78 653 2.91
26 2022-07-02 2856 5.11 304 2.30 385 5.97 561 4.99 946 6.03 660 4.70
27 2022-07-09 2875 5.67 307 4.23 421 8.31 689 5.52 883 6.23 571 3.85
28 2022-07-16 2888 5.78 286 3.15 341 8.50 731 5.34 927 6.26 601 5.32
29 2022-07-23 2918 4.49 329 3.95 424 4.72 624 2.40 1007 6.06 530 3.96
30 2022-07-30 2791 4.87 284 4.58 378 8.47 609 2.46 982 5.60 527 3.98
31 2022-08-06 2156 4.22 248 4.03 N.A. N.A. 522 4.21 1000 3.80 382 5.50

Positive adenovirus (ADV) tests

Figure 6: Positive adenovirus (ADV) tests (%) in Canada by region by surveillance week
Figure 6
Figure 6: Positive adenovirus (ADV) tests (%) in Canada by region by surveillance week
Week Week End Can Tests ADV% Atl Tests ADV% QC Tests ADV% ON Tests ADV% Pr Tests ADV% BC Tests ADV%
35 2021-09-04 2630 1.18 573 1.05 137 4.38 857 1.52 740 0.54 315 0.32
36 2021-09-11 2880 1.15 653 0.61 147 4.76 805 1.61 953 0.63 317 0.95
37 2021-09-18 3469 0.81 980 0.51 138 0.00 1101 1.45 858 0.23 386 1.04
38 2021-09-25 3780 0.82 1083 0.46 219 2.28 1113 0.54 857 0.47 506 2.17
39 2021-10-02 4052 1.14 1071 0.28 232 3.45 1461 1.37 766 1.17 517 1.16
40 2021-10-09 3821 1.31 721 0.14 314 1.91 1542 1.95 716 1.68 524 0.19
41 2021-10-16 3574 1.37 543 0.18 335 5.07 1461 1.57 725 0.97 510 0.20
42 2021-10-23 4017 2.54 628 0.00 455 11.87 1631 2.33 768 0.91 531 0.56
43 2021-10-30 4187 1.15 836 0.12 417 3.12 1541 1.56 778 1.03 608 0.33
44 2021-11-06 3941 1.42 415 0.96 293 1.02 1690 1.60 834 1.44 708 1.41
45 2021-11-13 4481 1.63 705 0.71 317 6.62 1772 1.47 865 1.16 819 1.22
46 2021-11-20 4421 2.51 598 0.50 356 7.30 1735 2.25 975 2.05 756 3.04
47 2021-11-27 4692 1.94 576 0.69 380 3.68 1968 2.69 1057 0.76 709 1.69
48 2021-12-04 4809 1.89 668 0.75 403 4.71 2055 1.95 953 1.47 723 1.80
49 2021-12-11 5614 2.48 684 0.88 411 4.87 2722 3.23 1063 1.03 733 1.91
50 2021-12-18 5998 2.72 677 0.74 503 6.56 3058 2.88 1019 1.67 741 2.70
51 2021-12-25 5474 2.54 314 1.59 378 7.41 3031 2.18 997 1.20 751 3.73
52 2022-01-01 5163 1.92 133 3.76 324 5.56 2747 1.49 1198 1.25 760 2.63
1 2022-01-08 5163 1.84 105 3.81 296 7.43 2757 1.38 1439 0.83 558 3.41
2 2022-01-15 4760 1.13 66 1.52 320 2.19 2167 0.51 1608 1.24 597 2.51
3 2022-01-22 4494 1.34 200 0.50 234 5.98 1892 1.16 1413 0.71 753 1.73
4 2022-01-29 4497 1.18 144 0.69 313 3.19 1846 1.14 1426 0.56 766 1.70
5 2022-02-05 3959 1.57 193 3.63 169 6.51 1623 1.42 1255 0.72 715 1.68
6 2022-02-12 3539 1.44 188 1.60 239 5.02 1486 1.14 972 0.62 651 2.00
7 2022-02-19 3164 1.52 233 2.58 166 7.83 1397 0.72 807 0.99 557 1.97
8 2022-02-26 3035 1.85 254 1.97 205 8.29 1263 0.87 732 1.78 579 1.73
9 2022-03-05 3207 1.90 207 1.93 215 7.44 1349 1.26 909 1.10 523 2.68
10 2022-03-12 3139 1.98 243 0.41 229 7.86 1266 1.11 864 1.74 531 2.64
11 2022-03-19 3039 1.88 245 1.63 245 4.90 1187 0.84 902 2.33 460 2.17
12 2022-03-26 3283 1.71 205 0.49 290 3.45 1288 1.40 914 1.97 580 1.55
13 2022-04-02 3485 2.30 227 0.44 291 8.93 1363 1.10 1025 1.95 577 3.12
14 2022-04-09 3688 1.74 196 1.53 372 4.84 1286 1.24 1284 1.17 544 2.21
15 2022-04-16 3918 1.71 206 2.43 483 2.48 1229 1.30 1305 1.38 694 2.31
16 2022-04-23 3918 1.84 277 1.08 364 4.95 1244 1.21 1368 1.39 660 2.58
17 2022-04-30 5402 1.37 848 0.59 852 2.82 1499 0.80 1430 1.26 769 1.82
18 2022-05-07 6211 1.32 1585 0.25 967 2.79 1401 1.36 1465 1.16 788 1.90
19 2022-05-14 4527 1.52 470 1.70 514 2.33 1412 1.42 1420 0.85 706 2.41
20 2022-05-21 4528 1.68 584 0.51 498 4.62 1461 1.10 1198 1.09 779 2.57
21 2022-05-28 4775 1.95 1090 0.37 440 5.23 1335 1.65 1122 2.14 775 2.58
22 2022-06-04 4680 1.56 1144 0.61 446 2.47 1230 1.87 1126 1.69 724 1.66
23 2022-06-11 3716 2.26 696 1.15 632 5.06 597 2.35 1131 1.77 651 1.54
24 2022-06-18 3259 2.36 267 1.87 641 3.74 589 2.04 1068 1.50 690 2.90
25 2022-06-25 3238 1.91 284 1.06 643 3.42 622 1.77 1032 1.55 653 1.53
26 2022-07-02 3063 2.87 304 2.63 593 3.88 561 3.21 945 2.12 660 2.88
27 2022-07-09 3102 2.68 307 1.95 649 3.70 689 2.61 882 2.04 571 2.98
28 2022-07-16 3113 2.54 286 4.90 567 1.76 731 1.23 926 3.13 601 2.83
29 2022-07-23 3113 2.47 329 2.13 619 3.39 624 1.60 1007 1.89 530 3.77
30 2022-07-30 2989 2.71 284 2.11 576 3.13 609 2.30 982 2.65 527 3.04
31 2022-08-06 2155 2.74 249 3.21 N.A. N.A. 522 2.87 998 2.10 382 3.93

Positive human metapneumovirus (HMPV) tests

Figure 7: Positive human metapneumovirus (HMPV) tests (%) in Canada by region by surveillance week
Figure 7
Figure 7: Positive human metapneumovirus (HMPV) tests (%) in Canada by region by surveillance week
Week Week End Can Tests HMPV% Atl Tests HMPV% QC Tests HMPV% ON Tests HMPV% Pr Tests HMPV% BC Tests HMPV%
35 2021-09-04 2666 0.23 580 0.00 138 2.17 832 0.36 793 0.00 315 0.00
36 2021-09-11 2933 0.24 653 0.00 149 0.67 796 0.50 1013 0.20 317 0.00
37 2021-09-18 3488 0.17 978 0.00 138 1.45 1073 0.19 907 0.11 386 0.26
38 2021-09-25 3810 0.37 1083 0.00 219 1.83 1086 0.74 914 0.00 506 0.40
39 2021-10-02 4058 0.17 1070 0.00 232 0.86 1428 0.21 810 0.00 513 0.39
40 2021-10-09 3768 0.16 721 0.00 238 1.26 1503 0.20 778 0.00 524 0.00
41 2021-10-16 3495 0.20 543 0.18 229 0.87 1436 0.07 777 0.00 510 0.59
42 2021-10-23 3876 0.15 628 0.00 276 0.36 1611 0.12 826 0.00 531 0.56
43 2021-10-30 4115 0.36 836 0.00 313 3.51 1510 0.13 841 0.24 608 0.00
44 2021-11-06 3902 0.77 415 0.00 210 6.19 1663 0.24 905 0.33 708 1.41
45 2021-11-13 4538 0.64 705 0.14 325 4.92 1742 0.17 944 0.21 819 0.85
46 2021-11-20 4435 0.99 597 0.17 349 8.02 1704 0.35 1028 0.49 756 0.53
47 2021-11-27 4738 1.01 575 0.52 380 8.68 1968 0.46 1104 0.00 709 0.42
48 2021-12-04 4868 1.48 668 0.45 403 12.90 2055 0.44 1012 0.30 723 0.69
49 2021-12-11 5658 1.22 684 0.88 411 9.98 2721 0.55 1108 0.54 733 0.14
50 2021-12-18 5920 1.08 677 0.30 397 11.08 3057 0.46 1048 0.38 741 0.00
51 2021-12-25 5508 1.20 311 2.89 378 12.17 3031 0.13 1034 0.29 751 0.53
52 2022-01-01 5190 1.00 132 1.52 321 10.28 2746 0.36 1230 0.16 760 0.66
1 2022-01-08 5173 0.72 101 1.98 295 8.14 2757 0.07 1454 0.21 558 1.08
2 2022-01-15 4796 0.38 66 4.55 320 0.94 2166 0.14 1645 0.43 597 0.34
3 2022-01-22 4500 0.24 202 0.00 227 3.08 1890 0.00 1426 0.21 753 0.13
4 2022-01-29 4429 0.23 144 1.39 228 1.32 1846 0.16 1443 0.14 766 0.00
5 2022-02-05 4038 0.25 193 2.07 233 0.86 1623 0.12 1270 0.08 715 0.14
6 2022-02-12 3549 0.42 188 2.13 239 2.51 1486 0.07 982 0.20 651 0.31
7 2022-02-19 3180 0.44 233 0.86 166 4.22 1397 0.00 823 0.61 557 0.00
8 2022-02-26 3038 0.53 253 0.79 205 3.41 1259 0.08 740 0.68 579 0.17
9 2022-03-05 3234 0.40 206 0.00 235 2.13 1348 0.07 918 0.65 523 0.19
10 2022-03-12 3152 0.51 243 0.41 230 1.74 1266 0.24 876 0.80 531 0.19
11 2022-03-19 3046 0.59 245 1.22 245 1.63 1186 0.00 910 0.66 460 1.09
12 2022-03-26 3367 0.77 205 1.46 367 1.09 1287 0.23 922 1.08 580 1.03
13 2022-04-02 3503 1.28 227 2.20 291 1.72 1363 0.95 1043 1.53 577 1.04
14 2022-04-09 3732 1.45 196 3.57 372 1.88 1285 1.25 1329 1.66 544 0.37
15 2022-04-16 3949 1.52 206 1.46 483 1.86 1225 1.71 1340 1.49 694 1.01
16 2022-04-23 3938 2.18 277 2.17 363 2.20 1237 1.70 1396 2.72 660 1.97
17 2022-04-30 5459 2.40 849 2.36 857 1.75 1496 1.87 1484 3.23 769 2.60
18 2022-05-07 6241 2.55 1584 1.01 967 1.03 1401 3.43 1496 4.01 788 3.17
19 2022-05-14 4551 3.63 470 3.19 514 3.11 1412 4.04 1444 3.53 706 3.68
20 2022-05-21 4550 4.79 584 3.42 497 3.62 1454 6.33 1228 4.97 779 3.47
21 2022-05-28 4779 5.69 1090 1.83 441 3.40 1332 8.41 1128 6.12 775 7.23
22 2022-06-04 4676 5.22 1144 2.71 445 3.15 1230 8.05 1123 4.10 724 7.46
23 2022-06-11 3721 5.35 696 2.73 633 1.90 594 8.59 1138 6.50 651 6.61
24 2022-06-18 3259 6.29 267 6.74 639 1.88 589 9.85 1070 5.14 690 8.99
25 2022-06-25 3234 6.96 284 5.28 641 1.56 621 10.79 1031 5.63 653 11.49
26 2022-07-02 3068 6.29 304 2.96 593 1.85 561 10.34 950 4.53 660 10.91
27 2022-07-09 3104 7.22 307 7.49 646 2.79 689 10.16 887 5.07 571 11.91
28 2022-07-16 3117 4.88 286 3.50 566 1.77 731 7.66 931 3.44 601 7.32
29 2022-07-23 3123 3.65 329 2.13 619 2.91 624 3.69 1017 2.85 530 6.98
30 2022-07-30 2753 3.74 284 4.23 572 3.50 583 6.69 984 2.54 319 2.19
31 2022-08-06 2174 3.54 248 2.82 N.A. N.A. 522 5.56 1018 2.36 382 4.45

Positive enterovirus/rhinovirus (EV/RV) tests

Figure 8: Positive enterovirus/rhinovirus (EV/RV) tests (%) in Canada by region by surveillance week
Figure 8
Figure 8: Positive enterovirus/rhinovirus (EV/RV) tests (%) in Canada by region by surveillance week
Week Week End Can Tests EV/RV% Atl Tests EV/RV% QC Tests EV/RV% ON Tests EV/RV% Pr Tests EV/RV% BC Tests EV/RV%
35 2021-09-04 2536 21.96 580 21.21 N.A. N.A. 857 26.49 740 21.49 311 14.15
36 2021-09-11 2743 18.59 653 15.62 N.A. N.A. 805 21.24 953 18.68 311 18.01
37 2021-09-18 3336 27.46 978 33.44 N.A. N.A. 1104 27.72 858 22.26 378 23.02
38 2021-09-25 3555 33.19 1083 43.40 N.A. N.A. 1113 31.63 854 25.29 497 27.97
39 2021-10-02 3822 30.01 1070 32.52 N.A. N.A. 1461 32.44 766 21.28 513 30.99
40 2021-10-09 3504 26.26 721 17.48 N.A. N.A. 1542 33.01 715 23.92 515 21.75
41 2021-10-16 3243 22.91 543 16.21 N.A. N.A. 1461 27.24 725 15.17 502 28.88
42 2021-10-23 3552 22.16 628 11.78 N.A. N.A. 1631 25.32 766 21.93 515 25.05
43 2021-10-30 3711 19.64 836 7.06 N.A. N.A. 1540 24.68 777 19.18 539 25.97
44 2021-11-06 3623 21.45 415 16.39 N.A. N.A. 1675 23.28 834 17.99 689 24.38
45 2021-11-13 4162 22.39 709 12.83 N.A. N.A. 1766 27.18 865 21.04 812 21.55
46 2021-11-20 4067 21.37 597 13.57 N.A. N.A. 1735 23.34 975 21.85 743 22.21
47 2021-11-27 4287 18.54 575 11.83 N.A. N.A. 1951 21.78 1055 16.11 694 18.88
48 2021-12-04 4423 16.64 668 10.93 N.A. N.A. 2053 18.56 952 15.44 708 17.23
49 2021-12-11 5204 14.57 684 11.11 N.A. N.A. 2713 14.19 1061 14.80 716 18.30
50 2021-12-18 5516 12.40 677 7.68 N.A. N.A. 3058 10.99 1014 13.31 734 20.57
51 2021-12-25 5104 9.95 311 9.00 N.A. N.A. 3031 7.06 997 12.04 733 18.55
52 2022-01-01 4852 7.71 132 11.36 N.A. N.A. 2746 5.39 1196 9.95 747 11.91
1 2022-01-08 4902 5.71 104 6.73 N.A. N.A. 2757 2.76 1439 7.23 544 15.26
2 2022-01-15 4471 3.98 66 1.52 N.A. N.A. 2166 1.85 1608 4.54 588 10.37
3 2022-01-22 4258 3.12 202 2.97 N.A. N.A. 1892 1.48 1396 4.23 732 5.19
4 2022-01-29 4199 2.60 144 1.39 N.A. N.A. 1846 1.08 1421 3.45 753 5.05
5 2022-02-05 3806 3.02 193 1.55 N.A. N.A. 1623 1.79 1247 4.49 700 3.71
6 2022-02-12 3316 3.86 188 1.06 N.A. N.A. 1486 2.49 971 4.63 645 6.82
7 2022-02-19 3007 4.46 233 0.43 N.A. N.A. 1397 3.08 799 3.88 553 10.13
8 2022-02-26 2837 6.31 253 1.98 N.A. N.A. 1262 5.07 728 6.59 571 10.51
9 2022-03-05 2989 7.80 206 6.80 N.A. N.A. 1349 6.15 895 7.93 514 12.45
10 2022-03-12 2912 8.24 243 5.35 N.A. N.A. 1266 6.08 850 9.18 523 13.38
11 2022-03-19 2808 8.97 245 7.35 N.A. N.A. 1187 7.67 888 9.91 452 12.17
12 2022-03-26 3035 9.52 205 3.41 N.A. N.A. 1288 6.75 897 11.93 572 14.51
13 2022-04-02 3228 8.49 227 9.25 N.A. N.A. 1363 7.34 1008 9.03 562 10.68
14 2022-04-09 3351 9.25 196 8.16 N.A. N.A. 1286 7.54 1266 10.66 530 10.57
15 2022-04-16 3447 9.14 206 12.62 N.A. N.A. 1229 6.35 1295 8.49 682 14.52
16 2022-04-23 3573 8.20 277 7.94 N.A. N.A. 1244 6.19 1348 7.79 645 12.40
17 2022-04-30 4611 7.74 849 7.07 N.A. N.A. 1499 7.47 1412 7.72 757 8.59
18 2022-05-07 5341 7.41 1584 6.44 N.A. N.A. 1401 6.85 1453 7.78 780 10.13
19 2022-05-14 4128 8.36 470 5.11 N.A. N.A. 1412 6.94 1404 8.40 701 12.98
20 2022-05-21 4127 9.06 584 5.82 N.A. N.A. 1460 7.67 1184 10.30 773 11.77
21 2022-05-28 4356 10.26 1090 8.35 N.A. N.A. 1334 9.07 1099 13.47 764 10.86
22 2022-06-04 4332 9.14 1204 7.39 N.A. N.A. 1230 7.48 1102 10.80 705 12.48
23 2022-06-11 3114 13.26 696 11.21 N.A. N.A. 595 12.77 1118 12.70 640 16.41
24 2022-06-18 2639 14.36 267 11.24 N.A. N.A. 589 14.43 1054 13.85 680 16.62
25 2022-06-25 2618 16.62 284 9.15 N.A. N.A. 622 15.59 1017 17.60 643 19.75
26 2022-07-02 2488 16.96 304 12.50 N.A. N.A. 561 14.26 932 18.78 653 17.92
27 2022-07-09 2481 16.40 307 11.73 N.A. N.A. 689 16.11 859 17.23 565 17.17
28 2022-07-16 2544 16.12 286 10.49 N.A. N.A. 731 7.52 907 18.30 579 25.91
29 2022-07-23 2514 13.96 329 4.86 N.A. N.A. 624 11.54 989 15.77 520 17.50
30 2022-07-30 2421 11.52 284 9.51 N.A. N.A. 609 10.34 964 11.00 519 12.72
31 2022-08-06 2161 11.48 248 7.66 N.A. N.A. 522 9.20 984 11.59 374 15.78

Positive human coronavirus (HCoV) tests

Figure 9: Positive human coronavirus (HCoV) tests (%) in Canada by region by surveillance week
Figure 9
Figure 9: Positive human coronavirus (HCoV) tests (%) in Canada by region by surveillance week
Week Week End Can Tests HCoV% Atl Tests HCoV% QC Tests HCoV% ON Tests HCoV% Pr Tests HCoV% BC Tests HCoV%
35 2021-09-04 1993 1.05 98 0.00 138 0.00 645 1.71 793 1.01 311 0.64
36 2021-09-11 2260 0.62 202 0.00 149 0.00 584 1.03 1013 0.69 307 0.33
37 2021-09-18 2477 0.44 247 0.40 131 0.00 809 0.49 906 0.55 378 0.26
38 2021-09-25 2552 0.67 130 0.00 221 0.00 788 1.14 914 0.88 497 0.00
39 2021-10-02 2722 0.62 120 0.00 232 0.43 1042 0.38 810 1.48 513 0.00
40 2021-10-09 2986 0.57 332 0.30 238 0.00 1118 0.81 779 0.77 515 0.19
41 2021-10-16 2844 1.69 250 1.60 335 0.90 1032 1.55 725 2.90 502 0.80
42 2021-10-23 3350 1.07 353 0.28 453 0.22 1200 1.33 826 1.82 515 0.58
43 2021-10-30 3332 1.05 601 0.67 313 0.64 1042 1.34 778 1.80 593 0.17
44 2021-11-06 3028 2.21 154 3.90 210 2.38 1069 1.87 905 3.65 689 0.44
45 2021-11-13 3465 2.57 326 0.92 317 0.32 1142 2.19 865 6.82 812 0.12
46 2021-11-20 3478 2.99 310 2.90 349 0.86 1047 2.77 1028 4.77 743 1.88
47 2021-11-27 3897 3.90 305 3.61 475 1.47 1317 3.80 1104 6.79 694 1.30
48 2021-12-04 3785 4.94 368 4.89 465 1.94 1225 4.90 1012 8.89 708 1.41
49 2021-12-11 3830 6.58 369 5.42 356 1.97 1281 7.18 1108 11.01 715 1.54
50 2021-12-18 3815 7.26 356 6.18 496 3.02 1181 9.31 1048 10.11 734 3.27
51 2021-12-25 3131 8.11 69 10.14 378 2.91 914 10.83 1034 9.96 733 4.64
52 2022-01-01 3204 10.33 124 14.52 320 2.50 782 14.58 1230 11.54 747 6.56
1 2022-01-08 3367 9.27 99 4.04 296 8.45 966 10.87 1454 9.42 544 7.54
2 2022-01-15 3364 7.46 59 3.39 412 1.21 657 11.26 1646 8.75 588 4.42
3 2022-01-22 3100 4.97 186 1.08 226 2.65 529 6.43 1425 6.32 732 3.01
4 2022-01-29 3211 3.92 108 0.00 312 3.21 593 6.24 1443 4.92 753 1.06
5 2022-02-05 2755 2.83 68 1.47 233 2.15 480 3.33 1270 3.15 700 2.29
6 2022-02-12 2329 3.01 84 0.00 239 1.26 376 3.72 982 3.67 645 2.64
7 2022-02-19 2038 3.24 100 0.00 201 1.00 357 3.64 823 4.37 553 2.71
8 2022-02-26 1962 3.67 124 0.81 194 2.06 331 4.83 740 2.16 571 6.13
9 2022-03-05 2137 3.32 106 0.94 208 0.48 387 6.72 918 2.29 514 4.28
10 2022-03-12 2149 3.86 104 0.96 274 1.09 365 4.93 877 2.96 523 6.69
11 2022-03-19 2064 3.25 104 2.88 275 0.73 321 5.30 912 2.85 452 4.20
12 2022-03-26 2376 4.38 83 1.20 363 1.93 431 5.57 922 3.15 571 7.36
13 2022-04-02 2470 4.45 83 1.20 328 2.13 450 5.78 1045 2.68 562 8.54
14 2022-04-09 2735 4.24 83 6.02 318 4.09 468 3.85 1330 3.38 530 6.60
15 2022-04-16 3076 4.97 105 6.67 465 3.44 484 6.40 1339 2.76 682 9.09
16 2022-04-23 3156 4.91 197 2.03 327 6.73 586 5.97 1396 3.08 645 7.91
17 2022-04-30 3789 4.91 102 4.90 723 5.26 720 5.83 1483 2.56 757 8.32
18 2022-05-07 3837 4.80 91 4.40 801 3.87 664 8.13 1496 2.47 780 7.44
19 2022-05-14 3315 4.37 122 4.92 384 5.47 667 6.60 1438 2.36 701 5.71
20 2022-05-21 3177 4.53 142 8.45 362 3.59 667 7.05 1228 2.12 773 5.95
21 2022-05-28 2883 3.64 134 1.49 304 7.24 541 4.25 1132 2.12 764 4.45
22 2022-06-04 2859 3.78 146 4.79 324 5.25 581 6.20 1127 2.57 675 2.81
23 2022-06-11 2970 2.93 153 3.27 503 3.18 525 5.33 1140 1.75 640 2.81
24 2022-06-18 2942 3.09 131 0.76 526 3.80 531 4.90 1070 2.24 680 2.94
25 2022-06-25 3055 3.60 277 4.69 532 3.38 566 9.54 1033 1.16 643 2.02
26 2022-07-02 2968 2.02 304 2.63 538 2.42 523 3.44 950 0.95 653 1.84
27 2022-07-09 2961 1.89 307 1.30 563 1.60 632 4.27 890 1.12 565 1.06
28 2022-07-16 2896 1.07 286 0.00 458 1.53 640 1.41 931 0.86 579 1.04
29 2022-07-23 2951 0.64 329 0.61 528 1.14 552 0.91 1018 0.49 520 0.19
30 2022-07-30 2821 1.38 284 1.41 469 0.85 541 0.92 997 0.90 519 3.28
31 2022-08-06 2112 0.76 248 0.40 N.A. N.A. 467 1.28 1019 0.79 374 0.27

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