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Influenza Activity and Composition of the 2022–23 Influenza Vaccine — United States, 2021–22 Season
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7 22 2022
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Source: MMWR Morbidity Mortal Weekly Rep. 71(29):913-919
[PDF-215.21 KB]
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Journal Article:Morbidity and Mortality Weekly Report (MMWR)
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Description:Before the emergence of SARS-CoV-2, the virus that causes COVID-19, influenza activity in the United States typically began to increase in the fall and peaked in February. During the 2021-22 season, influenza activity began to increase in November and remained elevated until mid-June, featuring two distinct waves, with A(H3N2) viruses predominating for the entire season. This report summarizes influenza activity during October 3, 2021-June 11, 2022, in the United States and describes the composition of the Northern Hemisphere 2022-23 influenza vaccine. Although influenza activity is decreasing and circulation during summer is typically low, remaining vigilant for influenza infections, performing testing for seasonal influenza viruses, and monitoring for novel influenza A virus infections are important. An outbreak of highly pathogenic avian influenza A(H5N1) is ongoing; health care providers and persons with exposure to sick or infected birds should remain vigilant for onset of symptoms consistent with influenza. Receiving a seasonal influenza vaccine each year remains the best way to protect against seasonal influenza and its potentially severe consequences.
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ISSN:0149-2195 (print);1545-861X (digital);
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Pubmed ID:35862284
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Pubmed Central ID:PMC9310632
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Pages in Document:7 pdf pages
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Volume:71
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Issue:29
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