Influenza strikes millions every year, causing symptoms such as cough, fever, aches and a sore throat. Learn more about what ...

Officials at Wildlife World Zoo in Arizona reported two big cats and three large birds died, while 25 human employees were ...

At least 1 person in Texas contracted H5N1 bird flu after exposure to cattle. Experts worry that if the virus mutates, it ...

State officials have confirmed Louisiana’s first presumptive case of the avian influenza strand H5N1 on Friday. Louisiana is ...

Study reveals H5N1 virus adaptation in domestic cats, raising concerns about potential animal-to-human transmission.