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Measles activity in Canada: January - June 2014
Summary
Canada experienced 103 measles cases by May 2014 due to increased travel and lower immunization rates. Public health efforts focus on vaccination and rapid containment to maintain measles elimination.
Area of Science:
- Public Health
- Infectious Disease Epidemiology
Background:
- Measles outbreaks have been reported in Canada, with 103 cases documented by May 2014.
- Contributing factors include increased international travel by Canadians, rising measles incidence in countries with high exchange with Canada, and suboptimal immunization coverage within Canada.
Purpose of the Study:
- To analyze the factors contributing to measles cases in Canada.
- To assess the effectiveness of current public health strategies in preventing measles transmission.
Main Methods:
- Data compilation of reported measles cases from Canadian provinces.
- Analysis of importation and transmission events.
- Review of contributing factors including travel, international disease prevalence, and immunization coverage.
Main Results:
- By May 10, 2014, 103 measles cases were reported across five Canadian provinces.
- 21 measles importations occurred, with only eight leading to secondary transmission within Canada.
- Suboptimal immunization coverage and international travel were identified as key contributing factors.
Conclusions:
- Maintaining high immunization coverage is crucial for preventing measles.
- Heightened vigilance and rapid containment of imported cases are essential for sustaining measles elimination in Canada.
- Continued strengthening of immunization programs is recommended.
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