Update: Influenza Activity in the United States During the 2017–18 Season and Composition of the 2018–19 Influenza Vaccine

CDC collects, compiles, and analyzes data on influenza activity and viruses in the US. The 2017-18 influenza season was a high severity, A(H3N2)- predominant season. Influenza activity indicators were notable for the volume and intensity of influenza cases that occurred in most of the country at the...

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Bibliographic Details
Published in:MMWR. Morbidity and Mortality Weekly Report 2018, Vol.67 (22), p.634-642
Main Authors: Garten, Rebecca, Blanton, Lenee, Elal, Anwar Isa Abd, Alabi, Noreen, Barnes, John, Biggerstaff, Matthew, Brammer, Lynnette, Budd, Alicia P, Burns, Erin, Cummings, Charisse N, Davis, Todd, Garg, Shikha, Gubareva, Larisa, Jang, Yunho, Kniss, Krista, Kramer, Natalie, Lindstrom, Stephen, Mustaquim, Desiree, O'Halloran, Alissa, Sessions, Wendy, Taylor, Calli, Xu, Xiyan, Dugan, Vivien G, Fry, Alicia M, Wentworth, David, Katz, Jacqueline, Jernigan, Daniel
Format: Report
Language:English
Subjects:
Biological products
Cell culture
Data processing
Disease
Influenza
Medical laboratories
Orthomyxoviridae
Phylogenetics
Public health
Seasons
Spinal cord
Vaccines
Viruses
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Summary:CDC collects, compiles, and analyzes data on influenza activity and viruses in the US. The 2017-18 influenza season was a high severity, A(H3N2)- predominant season. Influenza activity indicators were notable for the volume and intensity of influenza cases that occurred in most of the country at the same time. Record hospitalization rates and high numbers of influenza-associated pediatric deaths also were reported. Receiving a seasonal flu vaccine each year remains the best way to protect against seasonal influenza and its potentially severe consequences. Testing for seasonal influenza viruses and monitoring for novel influenza A virus infections should continue year-round.
ISSN:0149-2195
1545-861X