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Measles cases in North America

Jesse Tahirali, CTVNews.ca


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There have been 155 confirmed cases of measles in Canada in 2015: 18 cases in Southern Ontario, 136 in Lanaudiere, Que., and one in Winnipeg. There have also been 176 cases confirmed in the U.S. this year.

The Quebec cases are linked to a December outbreak of the disease at Disneyland in California, which has since spread to six other states.

Above are all confirmed cases of measles in 2015, according to the Centers for Disease Control and Prevention.

California numbers are taken from the California Measles Surveillance Update and go back to the beginning of the Disneyland outbreak in December. The California Department of Public Health is reporting three out of the 133 cases have a distinct genotype from the main outbreak and are thought to be unrelated.

Though 49 of the other 132 California cases have an unknown exposure source, they are assumed to be linked to the outbreak “based on a combination of descriptive epidemiology or strain type.”

The CDPH is reporting 57 patients out of the 77 with a known vaccination status were unvaccinated.

Last updated on Monday, Mar. 16, 2015. U.S. numbers from the CDC accurate to Mar. 13, 2015.

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