From WRAL, AP and elsewhere:
State officials say a chemical blamed for more than a dozen pet deaths across the nation has been found in feed at a hog farm in western North Carolina.
Melamine was found in hogs at the farm, which wasn't identified, officials said Tuesday. The pigs have been quarantined and appear healthy. There is no immediate danger to the public, the officials said.
From a Washington Post story:
WASHINGTON -- Several hundred of the 6,000 hogs that may have eaten contaminated pet food are believed to have entered the food supply for humans, the government said Thursday. The potential risk to human health was said to be very low.