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Update: Influenza Activity in the United States During the 2016–17 Season and Composition of the 2017–18 Influenza Vaccine

2017; Centers for Disease Control and Prevention; Volume: 66; Issue: 25 Linguagem: Inglês

10.15585/mmwr.mm6625a3

1545-861X

Lenee Blanton, Noreen Alabi, Desiree Mustaquim, Calli Taylor, Krista Kniss, Natalie Kramer, Alicia Budd, Shikha Garg, Charisse N Cummings, Jessie R. Chung, Brendan Flannery, Alicia M. Fry, Wendy Sessions, Rebecca Garten, Xiyan Xu, Anwar Isa Abd Elal, Larisa V. Gubareva, John Barnes, Vivien G. Dugan, David E. Wentworth, Erin Burns, Jacqueline M. Katz, Daniel B. Jernigan, Lynnette Brammer,

COVID-19 epidemiological studies

During the 2016-17 influenza season (October 2, 2016-May 20, 2017) in the United States, influenza activity* was moderate. Activity remained low through November, increased during December, and peaked in February nationally, although there were regional differences in the timing of influenza activity. Influenza A(H3N2) viruses predominated through mid-March and were predominant overall for the season, but influenza B viruses were most commonly reported from late March through May. This report summarizes influenza activity in the United States during October 2, 2016-May 20, 2017† and updates the previous summary (1).