Ask the Expert: Highly Pathogenic Avian Influenza A(H5N1) Viruses

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February 17, 2023

Flu Weekly Newsletter

Influenza (Flu)
2022 - 2023 Flu Season 

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www.cdc.gov/flu

Weekly U.S. Flu Activity Report

Flu activity is low across the country, but annual flu vaccination is recommended as long as flu activity is ongoing.

Weekly U.S. Influenza Surveillance Report map showing intensity of flu infections
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An image of a mink with the text overlay: cdc.gov/bird-flu

Ask the Expert: Highly Pathogenic Avian Influenza A(H5N1) Viruses

A recent outbreak of H5N1 bird flu among mink in Spain might have you wondering about the risk to human health. We asked a CDC flu expert to answer this and other common questions about H5N1 bird flu. 
A graphic titled “the benefits of flu vaccination 2021-2022” The graphic text reads: CDC estimates that during the 2021-2022 season, flu vaccination prevented 1.8 million flu illnesses (More than the combined number of people who live in Vermont and Rhode Island); 1.0 million flu medical visits (More than the number of people who live in Austin, Texas; 22,000 flu hospitalizations (Equivalent to preventing about 60 hospitalizations per day over the course of a year); 1,000 flu deaths (About the number of people it would take to fill two Boeing 747 airplanes). There are icons depicting each real-world comparison.

Burden of Flu Prevented by Vaccination during 2021-2022
CDC estimates that during the 2021-2022 season, flu vaccination prevented an estimated 1.8 million flu-related illnesses, 1 million medical visits, 22,000 hospitalizations, and 1,000 deaths. These numbers are lower than a typical flu season because there was less flu activity during this season. Getting a yearly flu vaccine helps protect against flu and its potentially serious complications.

Twitter @CDCFlu

Clinicians: February is American #HeartMonth. #DYK that during most flu seasons, about half of adults hospitalized with #flu have heart disease? More about flu and people with heart disease or history of stroke: https://bit.ly/2nXADVq

  

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