"In Canada, the flu vaccine could be working even more poorly, with "little or no protection.""
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"About 98 per cent of the viruses are mismatched that have been characterized in Canada, whereas in the U.S. its closer to about 68 per cent, or about two-thirds are mismatched. So it's not a good omen," said Dr. Danuta Skowronski of the British Columbia Centre for Disease Control.
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http://www.cbc.ca/news/health/flu-vaccine-only-23-effective-...