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Flu shot offers modest protection this year in US; Canadian numbers likely lower
2015-01-15 22:35:17| Biotech - Topix.net
This 2011 image provided by the Centers for Disease Control and Prevention shows an H3N2 influenza virus _ the same type of flu that's responsible for most flu illnesses this winter. A new study shows that this year's flu vaccine is only 23 per cent effective, mainly because it isn't well matched to the H3N2 strain that's spread across the country.
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Category:Biotechnology and Pharmaceuticals
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