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New Bird Flu Strain Hits Human in Washington
19 Nov
Summary
- A man in Washington was diagnosed with the H5N5 bird flu subtype.
- This is the first time H5N5 has been detected in a human.
- Human-to-human transmission of H5N5 is considered unlikely.
A rare strain of bird flu, H5N5, has been identified in a human in Washington state, marking the first documented human case of this subtype. The affected individual, an older adult with pre-existing conditions, is hospitalized and is believed to have contracted the virus through contact with backyard poultry that were exposed to wild birds.
Public health officials have indicated that the risk of human-to-human transmission for this specific H5N5 strain is very low. Experts explain that while avian influenza viruses can sporadically infect humans, they typically require specific mutations to spread efficiently between people. The current prevalence of H5N5 in wild bird populations raises concerns about continued sporadic infections in humans with close avian exposure.
Authorities advise heightened awareness for individuals who keep backyard birds or have contact with poultry and dairy cattle. They recommend monitoring animals for illness, avoiding sick or deceased animals, and utilizing personal protective equipment when necessary. Proper cooking of poultry to 165°F internal temperature ensures safety, and seasonal flu vaccination may offer some cross-protection.
