More than a dozen cats dead or sickened by bird flu in raw pet food, FDA says

More than a dozen cats have been killed or sickened by bird flu that is spreading in raw food products, the Food and Drug Administration says, prompting a federal probe into how the virus got into the pet food supply chain. 

"The FDA is aware of reports of death or illness associated with uncooked food in 13 domestic cats in eight households, 1 exotic cat in one household, and an unknown number of animals at two sanctuaries for large felids," an FDA official said in a statement. 

Cases have been in California, Colorado, Oregon and Washington state, the FDA said.