Measles & Rubella Weekly Monitoring Report: September 25 to October 1, 2016 (week 39)
Key Points
- In Canada, no new cases of measles or rubella were reported for week 39, 2016.
- One province (Ontario) has an activeFigure 2 - Footnote * measles case, linked to importation. There are no active cases of rubella.
- A total of 11 cases of measles, and 1 case of rubella have been reported in Canada in 2016.
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Epidemiological Summary
During epidemiological week 39, 2016, no new cases of measles or rubella were reported in CanadaFootnote 1.
It has been 1 epidemiologic week since the last measles case was reported (week 38, 2016), and 33 epidemiologic weeks since the last rubella case was reported (week 6, 2016).
The year-to-date total is 11 cases of measles and 1 case of rubella for 2016 (Figure 1); almost all cases have been importations, with no secondary transmission within Canada.
Organization:
Figure 1: Number of cases of measles (n=11) and rubella (n=1), 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 October 1, 2016.
Figure 1 - Text Description
Epidemiological Week of Rash Onset, 2016 | Number of confirmed measles cases reported | Number of confirmed rubella cases reported |
---|---|---|
1 | 1 | 0 |
2 | 0 | 0 |
3 | 1 | 0 |
4 | 0 | 0 |
5 | 0 | 0 |
6 | 0 | 1 |
7 | 0 | 0 |
8 | 0 | 0 |
9 | 2 | 0 |
10 | 0 | 0 |
11 | 2 | 0 |
12 | 0 | 0 |
13 | 0 | 0 |
14 | 0 | 0 |
15 | 0 | 0 |
16 | 0 | 0 |
17 | 0 | 0 |
18 | 0 | 0 |
19 | 1 | 0 |
20 | 0 | 0 |
21 | 0 | 0 |
22 | 1 | 0 |
23 | 0 | 0 |
24 | 0 | 0 |
25 | 0 | 0 |
26 | 0 | 0 |
27 | 0 | 0 |
28 | 0 | 0 |
29 | 0 | 0 |
30 | 0 | 0 |
31 | 0 | 0 |
32 | 0 | 0 |
33 | 0 | 0 |
34 | 2 | 0 |
35 | 0 | 0 |
36 | 0 | 0 |
37 | 1 | 0 |
38 | 0 | 0 |
39 | 0 | 0 |
Missing Rash Onset | 0 | 0 |
Cases (year-to-date) | 11 | 1 |
Geographic Distribution
There is currently one reported activeFigure 2 - Footnote * case of measles in Canada, located in the region of Central East Ontario (Figure 2).
There are no reported activeFigure 2 - Footnote * cases of rubella in Canada (Figure not shown).
To date in 2016, measles cases have been reported in four Canadian provinces (British Columbia, Alberta, Ontario, and Quebec), and a rubella case has been reported in one province (British Columbia). Maps from previous weeks, including any retrospective updates, are available online in the Measles and rubella weekly surveillance maps feature.
Figure 2: Distribution of activeFigure 2 - Footnote *, confirmed measles cases by health region.
- Figure 2 - Footnote *
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Active cases or outbreaks are those in which the onset date of the most recent case/outbreak-associated case falls within 32 days of the issue date of this reportFootnote 2.
Figure 2 - Text Description
Health Region | Measles Cases | Rubella Cases |
---|---|---|
Eastern Regional Integrated Health Authority | 0 | 0 |
Central Regional Integrated Health Authority | 0 | 0 |
Western Regional Integrated Health Authority | 0 | 0 |
Labrador-Grenfell Regional Integrated Health Authority | 0 | 0 |
Prince Edward Island | 0 | 0 |
South Shore District Health Authority | 0 | 0 |
South West Nova District Health Authority | 0 | 0 |
Annapolis Valley District Health Authority | 0 | 0 |
Colchester East Hants Health Authority | 0 | 0 |
Cumberland Health Authority | 0 | 0 |
Pictou County Health Authority | 0 | 0 |
Guysborough Antigonish Strait Health Authority | 0 | 0 |
Cape Breton District Health Authority | 0 | 0 |
Capital District Health Authority | 0 | 0 |
Zone 1 (NB) | 0 | 0 |
Zone 2 (NB) | 0 | 0 |
Zone 3 (NB) | 0 | 0 |
Zone 4 (NB) | 0 | 0 |
Zone 5 (NB) | 0 | 0 |
Zone 6 (NB) | 0 | 0 |
Zone 7 (NB) | 0 | 0 |
Québec and Chaudières-Appalaches | 0 | 0 |
Centre-du-Québec | 0 | 0 |
Montréal and Laval | 0 | 0 |
Ouest-du-Québec | 0 | 0 |
Montérégie | 0 | 0 |
Nord-Est | 0 | 0 |
Ontario Central East | 1 | 0 |
Ontario Central West | 0 | 0 |
Ontario Eastern | 0 | 0 |
Ontario North East | 0 | 0 |
Ontario North West | 0 | 0 |
Ontario South West | 0 | 0 |
City of Toronto Health Unit | 0 | 0 |
Winnipeg Regional Health Authority | 0 | 0 |
Prairie Mountain Health | 0 | 0 |
Interlake-Eastern Regional Health Authority | 0 | 0 |
Northern Regional Health Authority | 0 | 0 |
Southern Health | 0 | 0 |
Saskatchewan South | 0 | 0 |
Saskatchewan Central | 0 | 0 |
Saskatchewan North | 0 | 0 |
South Zone | 0 | 0 |
Calgary Zone | 0 | 0 |
Central Zone | 0 | 0 |
Edmonton Zone | 0 | 0 |
North Zone | 0 | 0 |
British Columbia Interior | 0 | 0 |
British Columbia Fraser | 0 | 0 |
British Columbia Vancouver Coastal | 0 | 0 |
British Columbia Vancouver Island | 0 | 0 |
British Columbia Northern | 0 | 0 |
Yukon | 0 | 0 |
Northwest Territories | 0 | 0 |
Nunavut | 0 | 0 |
|
Laboratory Summary
Measles
To date in 2016, 10 measles cases have been genotyped and the genotypes were B3 (n=7) and D8 (n=3) (Figure 3). One additional case was reported in 2016 but an appropriate specimen was not available for genotyping.
One case with rash onset in week 37 and travel history to Italy and Montenegro, was genotype B3. Genotype B3 has been detected globally, including in the European region.
Figure 3: Distribution of measles genotypes detected in 2016 (n=10) by weekFigure 3 - Footnote † of rash onset (if available, n=10) or specimen collection (n=0). Measles cases without specimens available for genotyping are not reflected (n=1).
- Figure 3 - Footnote †
-
Epidemiological weeks for laboratory specimens are assigned in accordance with WHO guidelines (WHO.WER.2012;9 (87):73) with week 1 beginning on the first Monday of the year.
- Figure 3 - Footnote *
-
Genotype B3 sequences identical to sequence variant / named strain MVi/Harare.ZWE/38.09 (GenBank accession number JF973033)
Return to Figure 3 - Footnote * referrer
Figure 3 - Text Description
Epi week | B3 | B3 - HarareFigure 3 Table - Footnote * | D4 | D8 | D8 - Taunton | D9 | H1 | Total |
---|---|---|---|---|---|---|---|---|
1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
3 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 |
4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
9 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 2 |
10 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 |
11 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 |
12 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
13 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
14 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
15 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
16 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
17 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
18 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
19 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 |
20 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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 | 0 | 0 | 0 | 0 | 0 |
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 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
35 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
36 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
37 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
38 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
39 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Total | 5 | 2 | 0 | 3 | 0 | 0 | 0 | 10 |
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The current global distribution of measles genotypes can be found on the WHO Measles Surveillance website.
For information regarding the interpretation and use of measles genotyping (including a discussion of genotypes and sequence variants), refer to Hiebert J and Severini A. Canada Communicable Disease Report. 2014; 40-12: 257- 260.
Rubella
No genotype information is available for the rubella case reported in 2016.
Footnotes
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