Bird Flu Is Back NYT Par :Emily Anthes and Apoorva Mandavilli 22 octobre 2025 à 11:02 After a quiet summer, the virus is hitting poultry flocks hard in the run-up to the holidays — and in the midst of a federal government shutdown. © Casey Steffens for The New York TimesAvian flu often flares up in the fall as wild birds begin migrating south; this year, the uptick is occurring during a government shutdown, as federal agencies that are typically involved in the response are working with skeletal staff.