Food and Drug Administration officials said Thursday their investigators had homed in on chicken feed as a likely major contributor to the salmonella contamination that triggered a nationwide egg recall and potentially caused nearly 1,500 cases of illness.
Feed found at Wright County Egg in Iowa tested positive for salmonella, FDA officials said at a joint news conference with the Centers for Disease Control and Prevention. Salmonella also was found in walkways and manure at Wright County Egg, as well as in ingredients used in the feed. The samples of the salmonella were a genetic match to the salmonella that has made many people sick, officials said.
The feed also was given to young hens, called pullets, that were supplied to Hillandale Farms, also in Iowa.