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Influenza Activity — United States, 2014–15 Season and Composition of the 2015–16 Influenza Vaccine
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Jun 05 2015
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Source: MMWR Morbidity Mortal Weekly Rep. 2015; 64(21):583-590.
[PDF-444.75 KB]
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Journal Article:Morbidity and Mortality Weekly Report (MMWR)
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Description:During the 2014-15 influenza season in the United States, influenza activity increased through late November and December before peaking in late December. Influenza A (H3N2) Viruses predominated, and the prevalence of influenza B Viruses increased late in the season. This influenza season, similar to previous influenza A (H3N2)-predominant seasons, was moderately severe with overall high levels of outpatient illness and influenza-associated hospitalization, especially for adults aged ≥65 years. The majority of circulating influenza A (H3N2) Viruses were different from the influenza A (H3N2) component of the 2014-15 Northern Hemisphere seasonal vaccines, and the predominance of these drifted Viruses resulted in reduced vaccine effectiveness. This report summarizes influenza activity in the United States during the 2014-15 influenza season (September 28, 2014-May 23, 2015) and reports the recommendations for the components of the 2015-16 Northern Hemisphere influenza vaccine.
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ISSN:0149-2195 (print);1545-861X (digital);
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Pubmed ID:26042650
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Pubmed Central ID:PMC4584770
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Pages in Document:8 pdf pages
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Volume:64
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Issue:21
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