Large bird flu outbreak threatening flocks across the U.S., including Missouri

Avian influenza is back, as the USDA says what could be the largest outbreak in U.S. history threatens flocks across the country, including in Missouri.Marshall Griffin talked about it with Dr. Chelsey Shivley, a Washington, D.C.-based veterinarian working with the USDA.See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.