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News From the Centers for Disease Control and Prevention
July 26, 2016

Least Severe Flu Season in 3 Years

JAMA. 2016;316(4):386. doi:10.1001/jama.2016.9300

People in the United States were blessed with a relatively mild 2015-2016 influenza season that produced fewer outpatient visits and hospitalizations as well as fewer deaths from flu or pneumonia compared with the previous 3 years, according to a recent CDC summary.

Last season, influenza activity peaked in mid-March, which is later than usual and has occurred only twice before—in 2011-2012 and 2005-2006—during the last 18 flu seasons.

Influenza A(H1N1)pdm09 viruses predominated, but influenza A(H3N2) viruses also circulated from October to early December, and influenza B viruses circulated from mid-April through mid-May. Fortunately, the majority of viruses were well matched to the 2015-2016 Northern Hemisphere influenza vaccine (Davlin SL et al. MMWR Morb Mortal Wkly Rep. 2016;65[22]:567-575).

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