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Coverage dated January 26, 2025 to January 27, 2025

H5N9 bird flu outbreak: New virus strain detected on California farm

Headline from Fox10 Phoenix

The H5N9 strain of avian influenza is much more rare than the H5N1 which has been responsible for most of the reported human cases and the first human death.

Fox10 Phoenix's own description from its feed. We collect headlines and these descriptions, not full articles; read the original reporting below.

Earlier updates in this story

Read the reports

Reports & sources

12 articles, oldest first.

  1. The Guardian

    First outbreak of rare bird flu strain reported at California poultry farm (opens The Guardian)

    Published

    The Guardian's feed description

    Discovery of H5N9 came alongside detection of the more common H5N1 on the farm, leading to 119,000 birds’ deaths

  2. Quartz

    Bird flu outbreak strikes poultry farm in California (opens Quartz)

    Published

    Quartz's feed description

    The recent identification marks the first confirmed U.S. case of H5N9 in poultry

  3. Newsweek

    What is H5N9? US reports first bird flu strain outbreak in poultry (opens Newsweek)

    Published

    Newsweek's feed description

    U.S. authorities also identified the more common H5N1 strain on the same farm in Merced County, California.

  4. Fox10 Phoenix

    H5N9 bird flu outbreak: New virus strain detected on California farm (opens Fox10 Phoenix)

    Published

    Fox10 Phoenix's feed description

    The H5N9 strain of avian influenza is much more rare than the H5N1 which has been responsible for most of the reported human cases and the first human death.

  5. Gizmodo

    New Strain of Bird Flu Found on California Duck Farm (opens Gizmodo)

    Published

    Gizmodo's feed description

    It's the first time that highly pathogenic avian influenza H5N9 has been found in U.S. poultry.

  6. Los Angeles Times

    A new strain of bird flu is found on a California duck farm (opens Los Angeles Times)

    Published

    Los Angeles Times's feed description

    A new strain of H5N9 bird flu was detected at a commercial duck operation in California's Merced County. All the ducks were euthanized.

  7. ABC 7 Chicago

    Bird flu outbreak: New sub-type of avian flu found on duck farm in Merced County, California (opens ABC 7 Chicago)

    Published

    ABC 7 Chicago's feed description

    A new strain of bird flu detected on a duck farm in central California has sparked new fears about avian influenza as egg prices continue to soar.

Identical headlines usually mean shared wire copy. They are counted as separate articles but are not independent confirmation.

H5N9 bird flu outbreak: New virus strain detected on California farm | Since Then