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Measles & Rubella Weekly Monitoring Report – Week 26: June 23 to June 29, 2024

Organization: Public Health Agency of Canada
Date published: 2024-07-10

Related Topics

Key points:

  • In Canada, no new cases of measles or rubella were reported in week 26, 2024.
  • Currently, there are 2 activeFootnote 1 cases of measles in Canada.
  • 78 cases of measles and 1 case of congenital rubella syndrome/infection have been reported in Canada in 2024.
  • 1 measles death has been reported in Canada in 2024.
  • Canadians travelling outside of Canada are encouraged to consult the travel health notices for information on measles and rubella outbreaks occurring in other countries.

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Epidemiological summary

During epidemiological week 26, 2024, no new cases of measles or rubella were reported in CanadaFootnote 2. To date in 2024, 78 cases of measles and 1 case of congenital rubella syndrome/infection have been reported, along with 1 measles death. The last case of rubella was reported in September 2023.

Figure 1: Number of cases of measles (n=78), rubella (n=0), and congenital rubella syndrome/infection (n=1)Footnote 3 by week of rash onset, as reported to the Canadian Measles/Rubella Surveillance System (CMRSS) and Measles and Rubella Surveillance System (MARS), for the period ending June 29, 2024.
Figure 1. Text version below.
Figure 1 - Text description
Epidemiological Week of Rash Onset, 2024 Number of confirmed measles cases reported Number of confirmed rubella cases reported Number of confirmed congenital rubella syndrome/infection cases reported
1 0 0 0
2 1 0 0
3 1 0 0
4 0 0 0
5 1 0 0
6 1 0 1
7 3 0 0
8 3 0 0
9 10 0 0
10 6 0 0
11 8 0 0
12 6 0 0
13 7 0 0
14 7 0 0
15 4 0 0
16 7 0 0
17 6 0 0
18 4 0 0
19 1 0 0
20 1 0 0
21 0 0 0
22 0 0 0
23 0 0 0
24 0 0 0
25 1 0 0
26 0 0 0
27 0 0 0
28 0 0 0
29 0 0 0
30 0 0 0
31 0 0 0
32 0 0 0
33 0 0 0
34 0 0 0
35 0 0 0
36 0 0 0
37 0 0 0
38 0 0 0
39 0 0 0
40 0 0 0
41 0 0 0
42 0 0 0
43 0 0 0
44 0 0 0
45 0 0 0
46 0 0 0
47 0 0 0
48 0 0 0
49 0 0 0
50 0 0 0
51 0 0 0
52 0 0 0
Cases (year-to-date) 78 0 1

Geographic distribution

There are currently 2 activeFootnote * cases of measles in Canada.

Figure 2. Distribution of activeFootnote *, confirmed measles cases by health region.
Figure 2. Text version below.
Figure 2 - Text description
Health Region Measles Active Cases
Eastern Regional Integrated Health Authority 0
Central Regional Integrated Health Authority 0
Western Regional Integrated Health Authority 0
Labrador-Grenfell Regional Integrated Health Authority 0
Prince Edward Island 0
South Shore District Health Authority 0
South West Nova District Health Authority 0
Annapolis Valley District Health Authority 0
Colchester East Hants Health Authority 0
Cumberland Health Authority 0
Pictou County Health Authority 0
Guysborough Antigonish Strait Health Authority 0
Cape Breton District Health Authority 0
Capital District Health Authority 0
Zone 1 (NB) 0
Zone 2 (NB) 0
Zone 3 (NB) 0
Zone 4 (NB) 0
Zone 5 (NB) 0
Zone 6 (NB) 0
Zone 7 (NB) 0
Québec et Chaudières-Appalaches 0
Centre-du-Québec 0
Montréal et Laval 0
Ouest-du-Québec 0
Montérégie 0
Nord-Est 0
Ontario Central East 0
Ontario Central West 0
Ontario Eastern 0
Ontario North East 0
Ontario North West 0
Ontario South West 0
City of Toronto Health Unit 2
Winnipeg Regional Health Authority 0
Prairie Mountain Health 0
Interlake-Eastern Regional Health Authority 0
Northern Regional Health Authority 0
Southern Health 0
Saskatchewan South 0
Saskatchewan Central 0
Saskatchewan North 0
South Zone 0
Calgary Zone 0
Central Zone 0
Edmonton Zone 0
North Zone 0
British Columbia 0
Yukon 0
Northwest Territories 0
Nunavut 0
Footnote *

Active measles cases are those in which the onset date of the case falls within 42 days of the end date of the epidemiological week of the report. The Centers for Disease Control and Prevention. Manual for the Surveillance of Vaccine-Preventable Diseases. Chapter 7: Measles. https://www.cdc.gov/vaccines/pubs/surv-manual/chpt07-measles.html. Page last reviewed: May 13, 2019.

Active rubella cases are those in which the onset date of the case falls within 46 days of the end date of the epidemiological week of the report. The Centers for Disease Control and Prevention. Manual for the Surveillance of Vaccine-Preventable Diseases. Chapter 14: Rubella. https://www.cdc.gov/vaccines/pubs/surv-manual/chpt14-rubella.html. Page last reviewed: May 18, 2018.

Return to footnote * referrer

Laboratory summary

Measles

During epidemiological week 26, 2024, the measles genotype was identified for 1 case that was reported in epidemiological week 25. The genotype of this case was D8. The case was reported by the province of Ontario and was an imported case with recent travel to Europe.

To date in 2024, 68 cases of measles have been genotyped; 53 were B3 and 15 were D8.

Figure 3: Distribution of measles genotypes detected in 2024 (n=68) by weekFootnote † of rash onset.
Figure 3. Text version below.
Figure 3 - Text description
Epi week B3 B3 - Harare D4 D8 D8 – Taunton D9 H1 Total
1 0 0 0 0 0 0 0 0
2 0 0 0 1 0 0 0 1
3 0 0 0 1 0 0 0 1
4 0 0 0 0 0 0 0 0
5 1 0 0 0 0 0 0 1
6 1 0 0 0 0 0 0 1
7 2 0 0 0 0 0 0 2
8 2 0 0 1 0 0 0 3
9 9 0 0 1 0 0 0 10
10 3 0 0 2 0 0 0 5
11 6 0 0 1 0 0 0 7
12 4 0 0 0 0 0 0 4
13 6 0 0 1 0 0 0 7
14 6 0 0 0 0 0 0 6
15 2 0 0 1 0 0 0 3
16 4 0 0 1 0 0 0 5
17 4 0 0 1 0 0 0 5
18 2 0 0 2 0 0 0 4
19 0 0 0 1 0 0 0 1
20 1 0 0 0 0 0 0 1
21 0 0 0 0 0 0 0 0
22 0 0 0 0 0 0 0 0
23 0 0 0 0 0 0 0 0
24 0 0 0 0 0 0 0 0
25 0 0 0 1 0 0 0 1
26 0 0 0 0 0 0 0 0
27 0 0 0 0 0 0 0 0
28 0 0 0 0 0 0 0 0
29 0 0 0 0 0 0 0 0
30 0 0 0 0 0 0 0 0
31 0 0 0 0 0 0 0 0
32 0 0 0 0 0 0 0 0
33 0 0 0 0 0 0 0 0
34 0 0 0 0 0 0 0 0
35 0 0 0 0 0 0 0 0
36 0 0 0 0 0 0 0 0
37 0 0 0 0 0 0 0 0
38 0 0 0 0 0 0 0 0
39 0 0 0 0 0 0 0 0
40 0 0 0 0 0 0 0 0
41 0 0 0 0 0 0 0 0
42 0 0 0 0 0 0 0 0
43 0 0 0 0 0 0 0 0
44 0 0 0 0 0 0 0 0
45 0 0 0 0 0 0 0 0
46 0 0 0 0 0 0 0 0
47 0 0 0 0 0 0 0 0
48 0 0 0 0 0 0 0 0
49 0 0 0 0 0 0 0 0
50 0 0 0 0 0 0 0 0
51 0 0 0 0 0 0 0 0
52 0 0 0 0 0 0 0 0
Total 53 0 0 15 0 0 0 68
Footnote †

Epidemiological weeks for laboratory specimens submitted to the National Microbiology Laboratory are assigned and reported in accordance with WHO guidelines (WHO.WER.2012;9(87):73) with week 1 beginning on the first Monday of the year, which for 2024 is January 1. However, for the purposes of this report, the genotype data is presented in accordance with PAHO reporting weeks with week 1 of 2024 beginning on December 31, 2023.

For information regarding the interpretation and use of measles genotyping (including a discussion of genotypes and named strains), refer to Hiebert J and Severini A. Canada Communicable Disease Report. 2014; 40-12: 257- 260.

The current global distribution of measles genotypes can be found on the WHO Measles Surveillance website.

Return to footnote † referrer

Footnotes

Footnote 1

Active measles cases are those in which the onset date of the case falls within 42 days of the end date of the epidemiological week of the report. Active rubella cases are those in which the onset date of the case falls within 46 days of the end date of the epidemiological week of the report.

Return to footnote 1 referrer

Footnote 2

Only cases with rash onset up to the indicated end date are included in this report. Any additional cases will be described in future reports.

Return to footnote 2 referrer

Footnote 3

Epidemiological week of birth is used for congenital rubella syndrome/infection cases.

Return to footnote 3 referrer

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