Measles & Rubella Weekly Monitoring Report: November 30 to December 6, 2014 (week 49)
Figure 1. Number of cases measles (n=127) 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 December 6, 2014. Among these, rash onset is not currently available for 25 cases; they have been excluded from the figure but included in the year-to-date total below.
During epidemiological week 49, 2014, no new cases of measles were reported in Canada.
The year-to-date totalFootnote 1 is 127 cases of measles and 1 case of rubella for 2014.
Figure 2: Distribution of confirmed measles and rubella cases by health region. Cases are included if they are considered active.Figure 2 - Footnote *
Genotyping is pending for 0 cases.
For 2014, measles genotype information is available for 111 of 127 reported cases and the genotypes were: B3 (n=65), D8 (n=36), D9 (n=5), H1 (n=3), and D4 (n=2).
Figure 3: Distribution of measles genotypes detected in 2014 (n=111) by week of rash onset (if available, n=85) or specimen collection (n=26). Epidemiological weeks are assigned in accordance with WHO guidelines (WHO.WER.2012;9(87):73) with week 1 beginning on the first Monday of the year.
* Genotype B3 sequences identical to sequence variant MVi/Harare.ZWE/38.09 (GenBank accession number JF973033)
† Genotype D8 sequences identical to sequence variant MVs/Taunton.GBR/27.12 (GenBank accession number JX984461)
The current global distribution of measles genotypes can be found on the WHO Measles Nucleotide Surveillance (MeaNS) 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.
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