Wisconsin Reports First Probable Human Case of Bird Flu in Barron County
The Wisconsin Department of Health Services (DHS) has identified what appears to be the first human case of Highly Pathogenic Avian Influenza A (H5N1), commonly referred to as bird flu, in Barron County. This development follows the discovery of an infected poultry flock in the area. The individual had contact with the affected birds, and initial testing was conducted by the Wisconsin State Lab of Hygiene (WSLH), pending confirmation by the Centers for Disease Control and Prevention (CDC).
DHS, alongside Barron County Health and Human Services, is keeping track of farm workers who may have been exposed, providing them with health safety information. Despite this case, the risk to the wider public in Wisconsin remains low. Those working with or around infected birds are at a heightened risk.
Since December 2021, the H5N1 virus has persisted among wild and domestic bird populations in North America. Known for being highly contagious and often lethal to domestic poultry, the virus is transmitted through influenza type A strains. The disease can spread to humans through direct contact with infected birds, their droppings, or contaminated equipment and clothing.
The virus does not typically transfer easily from animals to humans. Most human cases involve direct contact with infected birds.
Symptoms of bird flu in humans can include:
- Sore throat
- Fever
- Muscle aches
- Cough
- Eye infections (Conjunctivitis)
Individuals exhibiting flu-like symptoms or eye infections and who have been in contact with potentially infected animals should stay home and contact their healthcare provider before visiting to prevent further spread of the virus. Treatment options may involve hospitalization, supportive care, and antivirals.
Fully cooked eggs, poultry, and meat remain safe for consumption. Similarly, pasteurized dairy products such as milk, cheese, and yogurt are also safe. It is important to follow general safety precautions when handling raw meat, which include:
- Washing hands and surfaces thoroughly before and after preparing food.
- Using separate utensils for raw meat and other foods, including cooked meat.
- Ensuring all raw meat is cooked thoroughly.
Further updates on case numbers will be available at Outbreaks, Recalls, and Investigations in Wisconsin. For more information on preventive actions for farmworkers or those in close contact with animals, visit Protective Actions for People.
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