Update: Influenza Activity - United States, October 1, 2017–February 3, 2018

Influenza activity in the US began to increase in early November 2017 and rose sharply from December through Feb 3, 2018; elevated influenza activity is expected to continue for several more weeks. Influenza A viruses have been most commonly identified, with influenza A(H3N2) viruses predominating,...

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Bibliographic Details
Published in:MMWR. Morbidity and Mortality Weekly Report 2018, Vol.67 (6), p.169-179
Main Authors: Budd, Alicia P, Wentworth, David E, Blanton, Lenee, Elal, Anwar Isa Abd, Alabi, Noreen, Barnes, John, Brammer, Lynnette, Burns, Erin, Cummings, Charisse N, Davis, Todd, Flannery, Brendan, Fry, Alicia M, Garg, Shikha, Garten, Rebecca, Gubareva, Larisa, Jang, Yunho, Kniss, Krista, Kramer, Natalie, Lindstrom, Stephen, Mustaquim, Desiree, O'Halloran, Alissa, Olsen, Sonja J, Sessions, Wendy, Taylor, Calli, Xu, Xiyan, Dugan, Vivien G, Katz, Jacqueline, Jernigan, Daniel
Format: Report
Language:English
Subjects:
Cell culture
Epidemics
Infections
Influenza
Medical laboratories
Orthomyxoviridae
Pediatrics
Public health
Seasons
Systematic review
Vaccines
Viruses
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Summary:Influenza activity in the US began to increase in early November 2017 and rose sharply from December through Feb 3, 2018; elevated influenza activity is expected to continue for several more weeks. Influenza A viruses have been most commonly identified, with influenza A(H3N2) viruses predominating, but influenza A(H1N1)pdm09 and influenza B viruses were also reported. Interim estimates of 2017-18 season vaccine effectiveness (VE) against influenza A and influenza B virus infection associated with medically attended acute respiratory illness in the US was 36%. Here, Budd et al summarizing US influenza activity during Oct 1, 2017-Feb 3, 2018, and updates the previous summary.
ISSN:0149-2195
1545-861X