Measles & Rubella Weekly Monitoring Report: January 22 to January 28, 2017 (week 4)
- In Canada, no new cases of measles or rubella were reported for week 4, 2017.
- To date no cases of measles and rubella have been reported in Canada in 2017.
During epidemiological week 4, 2017, no new cases of measles or rubella were reported in CanadaFootnote 1.
It has been 18 epidemiologic weeks since the last measles case was reported (week 38, 2016), and 50 epidemiologic weeks since the last rubella case was reported (week 6, 2016).
To-date there are no cases of measles and rubella for 2017 (Figure 1).
Figure 1: Number of cases of measles (n=0) and rubella (n=0), 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 January 28, 2017.
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.
To date in 2017, no measles cases have been genotyped (Figure 3).
Figure 3: Distribution of measles genotypes detected in 2017 (n=0) by week† of rash onset (if available, n=0) or specimen collection (n=0). Measles cases without specimens available for genotyping are not reflected (n=0).
- 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
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.
To date in 2017, no rubella cases have been genotyped.
- Footnote 1
Only cases up to the indicated end date are included in this report. Any additional cases will be described in future reports.
- Footnote 2
Public Health Agency of Canada. Guidelines for the prevention and control of measles outbreaks in Canada. Canadian Communicable Disease Report. 2013. Vol. 39: Definitions: conclusion of an outbreak (p. 5).
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