During epidemiological week 4, 2016, no new cases of measles or rubella were reportedFootnote 1. It has been 1 epidemiological week since the last reported measles case (week 03, 2016), and 99 weeks since the last reported rubella case (week 10, 2014).
The year-to-date total is 2 cases of measles and 0 cases of rubella for 2016 (Figure 1).
Figure 1: Number of cases of measles (n=2) 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 30, 2016.
To date in 2016, measles cases have been reported in two Canadian provinces: British Columbia and Ontario.
To date in 2016, 1 measles case (reported by Ontario) has been genotyped and the genotype was B3 (Figure 3).
Genotyping is pending for 1 measles case reported by British Columbia in week 3, 2016.
Figure 3: Distribution of measles genotypes detected in 2016 (n=1) by weekFootnote † of rash onset (if available, n=1) or specimen collection (n=0).
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 2016, no rubella cases have been reported. As such, no genotype information is available.