U.S. conditionally approves vaccine to protect poultry from avian flu Jon Cohen, February 14, 2025 With egg prices in the United States soaring because of the spread of H5N1 influenza virus among poultry, the U.S. Department of Agriculture (USDA) yesterday conditionally approved a vaccine to protect the birds. President Donald Trump’s administration may therefore soon read more Report from Science Insider: U.S. conditionally approves vaccine to protect poultry from avian flu