What you need to know about bird flu. Public health experts are closely watching avian influenza, which has affected chickens and cows and sickened some Americans.

Nearly 119,000 birds have been culled at a farm in California after a bird flu called H5N9 was detected among the poultry

H5N9 is “not commonly seen in poultry in general,” says Eman Anis, assistant professor at the University of Pennsylvania School of Veterinary Medicine. (Anis is part of a lab that conducts national testing of poultry samples for avian influenza.)

A group that played a key role in Donald Trump’s voter outreach to the Arab American community alongside his allies is rebranding itself after the president said that the U.S. would “take over” the Gaza Strip.

Bird flu (H5N1) primarily affects birds but has spread to mammals, including humans. While human transmission remains rare, scientists fear mutation could make it airborne, potentially triggering a global health crisis.

This op-ed argues that to fight avian flu and other animal-borne illnesses, we need to overhaul our food system.