Public Health Agency of Canada
Symbol of the Government of Canada

Measles & Rubella Weekly Monitoring Report

Week 4, 2016: January 24 to January 30, 2016

Key Points:

  • In Canada, no new cases of measles or rubella were reported for week 4, 2016.
  • One province, British Columbia, currently has an activeFootnote * measles case.
  • A total of 2 cases of measles, and 0 cases of rubella have been reported in Canada in 2016.

Epidemiological Summary:

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.

Figure 1. Text equivalent follows.

Enlarge Figure 1

Text Equivalent - Figure 1

Geographic Distribution

There is currently one activeFootnote * case of measles in Canada, reported in British Columbia (Figure 2). There are no active cases of rubella reported in Canada (figure not shown).

To date in 2016, measles cases have been reported in two Canadian provinces: British Columbia and Ontario.

Figure 2: Distribution of activeFootnote *, confirmed measles cases by health region.Footnote ¥ Footnote

Figure 2. Text equivalent follows.

Enlarge Figure 2

Text Equivalent - Figure 2

Footnote *
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 report.
Footnote ¥
'No Data' is indicated for jurisdictions that do report cases of measles to the Public Health Agency of Canada, but do not include the public health region variable.
Footnote
One measles case has been reported by British Columbia, but is excluded from this figure.

Laboratory Summary

Measles

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).

Figure 3. Text equivalent follows.

Enlarge Figure 3

Text Equivalent - 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.

The current global distribution of measles genotypes can be found on the WHO Measles SurveillanceExternal Link 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

To date in 2016, no rubella cases have been reported. As such, no genotype information is available.

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).