Wyoming Confirms First Human Case of H5N1 Bird Flu

The Wyoming Department of Health (WDH) has confirmed the state’s first human case of H5N1 avian influenza, marking the latest instance of the virus infecting people in the United States. The patient, a Platte County resident, is the fourth American to be hospitalized with the virus.

Health officials report that the individual, who has underlying medical conditions, was likely exposed through direct contact with infected backyard poultry. The patient is currently receiving treatment in another state.

"H5N1 has been present in Wyoming’s wild bird population for some time, with the current strain spreading nationally since 2022," the WDH stated in a press release. Previous outbreaks among poultry and dairy cattle have also been documented in the state.

Low Risk to the General Public

So far, 70 people in the U.S. have been infected with H5N1 over the past year, primarily those with direct exposure to sick poultry or cattle. Most cases have been mild, though one fatality occurred in Louisiana.

While acknowledging the significance of this case, Wyoming State Health Officer Alexia Harrist, MD, PhD emphasized that the overall risk to the public remains low. "This is a significant development as we monitor bird flu activity in Wyoming and across the country, but it is not something that requires a high level of concern for most residents," she stated.

Public health officials have found no evidence of human-to-human transmission of H5N1 and have been monitoring individuals exposed to the infected patient and their flock. Experts continue tracking the virus as it spreads through wild birds, poultry, and dairy cattle nationwide.

Preventing Bird Flu Exposure

To reduce the risk of infection, health officials advise:
✅ Avoiding direct contact with sick or dead birds
✅ Not consuming raw or undercooked poultry, eggs, or dairy products
✅ Avoiding unpasteurized (raw) milk or dairy

Veterinary and public health experts continue to emphasize the importance of monitoring H5N1 to protect both animal and human health.