Missouri poultry producers are encouraged to review and tighten biosecurity protocols in light of the avian influenza virus confirmation in poultry throughout the Midwest, according to a press release from Missouri's Department of Agriculture.

Highly pathogenic avian influenza H5N1 is known to be deadly for domesticated chickens and turkeys. Avian influenza has been confirmed in both commercial and backyard poultry flocks in Midwestern states this month.

The influenza had a major impact on the US poultry industry this spring, as migratory birds flew north for the summer. While wild birds, especially waterfowl, are carriers of the virus, domestic poultry are incredibly susceptible.

“HPAI didn’t just ‘go away’ over the summer. The wild waterfowl carrying the virus are again active in the flyways as the fall migratory season ensues,” said Missouri state veterinarian Steve Strubberg. “It is extremely important that poultry producers practice biosecurity measures and be vigilant to protect the health of their flocks.”