Update: Influenza Activity in the United States During the 2018–19 Season and Composition of the 2019–20 Influenza Vaccine

Xu, Xiyan; Blanton, Lenee; Elal, Anwar Isa Abd; Alabi, Noreen; Barnes, John; Biggerstaff, Matthew; Brammer, Lynnette; Budd, Alicia P.; Burns, Erin; Cummings, Charisse N.; Garg, Shikha; Kondor, Rebecca; Gubareva, Larisa; Kniss, Krista; Nyanseor, Sankan; O’Halloran, Alissa; Rolfes, Melissa; Sessions, Wendy; Dugan, Vivien G.; Fry, Alicia M.; Wentworth, David E.; Stevens, James; Jernigan, Daniel

doi:10.15585/mmwr.mm6824a3

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Update: Influenza Activity in the United States During the 2018–19 Season and Composition of the 2019–20 Influenza Vaccine

Published Date:

June 21 2019

Publisher's site:

http://dx.doi.org/10.15585/mmwr.mm6824a3

Source:

MMWR Morb Mortal Wkly Rep. 68(24):544-551

Language:

English

[PDF-154.34 KB]

Details:

Alternative Title:

MMWR Morb Mortal Wkly Rep

Personal Author:

Xu, Xiyan ; Blanton, Lenee ; Elal, Anwar Isa Abd ; Alabi, Noreen ; Barnes, John ; ... More ▼

Description:

Influenza activity* in the United States during the 2018-19 season (September 30, 2018-May 18, 2019) was of moderate severity (1). Nationally, influenza-like illness (ILI)| activity began increasing in November, peaked during mid-February, and returned to below baseline in mid-April; the season lasted 21 weeks,| making it the longest season in 10 years. Illness attributed to influenza A viruses predominated, with very little influenza B activity. Two waves of influenza A were notable during this extended season: influenza A(H1N1)pdm09 viruses from October 2018 to mid-February 2019 and influenza A(H3N2) viruses from February through May 2019. Compared with the 2017-18 influenza season, rates of hospitalization this season were lower for adults, but were similar for children. Although influenza activity is currently below surveillance baselines, testing for seasonal influenza viruses and monitoring for novel influenza A virus infections should continue year-round. Receiving a seasonal influenza vaccine each year remains the best way to protect against seasonal influenza and its potentially severe consequences.

Subject:

[+]

Pubmed ID:

31220057

Pubmed Central ID:

PMC6586370

Document Type:

Journal Article

Place as Subject:

United States

Collection(s):

Morbidity and Mortality Weekly Report (MMWR)

Main Document Checksum:

[+]

File Type:

Supporting Files:

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	mm6824a3-F1.jpg	image/jpeg
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Update: Influenza Activity in the United States During the 2018–19 Season and Composition of the 2019–20 Influenza Vaccine

Update: Influenza Activity in the United States During the 2018–19 Season and Composition of the 2019–20 Influenza Vaccine

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