For immediate release: November 14, 2025 (25-138)
First detection of this strain in a human, risk to the public remains low
Contact: DOH Communications
A Grays Harbor resident who was hospitalized with influenza symptoms in early November has been confirmed to have influenza A H5, a type of avian influenza.
Additional testing shows the virus to be H5N5, an avian influenza virus that has previously been reported in animals but never before in humans.
The Centers for Disease Control and Prevention (CDC) and DOH currently consider the risk to the public from avian influenza to be low.
The person is an older adult with underlying health conditions and remains hospitalized.
The affected person has a mixed backyard flock of domestic poultry at home that had exposure to wild birds.
The domestic poultry or wild birds are the most likely source of virus exposure; however, public health investigation is ongoing.
The Washington State Department of Health is working with the local health department and the Washington State Department of Agriculture to complete exposure and animal health investigations.
Public health disease experts have not identified any increased risk to the public.
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Source: Department of Health, State of Washington, https://doh.wa.gov/newsroom/h5n5-avian-influenza-confirmed-grays-harbor-county-resident
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