Health officials are trying to pinpoint what caused two cases of salmonella in northeast Oklahoma in December. The DNA in the bacteria that sickened the Oklahomans matched DNA in the bacteria linked to the outbreak in other states, officials said.
"There’s not at this point a clear source for the two Oklahoma residents, but we’re working on it,” said Laurence Burnsed, the director of the state Health Department’s communicable disease division.
Burnsed said King Nut peanut butter is not available in Oklahoma, so investigators are looking for other possible sources for the teens’ sickness.
The teens, who have since recovered, were not identified.
Peter Muriana, a food microbiologist for the Robert M. Kerr Food and Agricultural Products Center at Oklahoma State University, said technology makes it easier to find the source of the outbreak, since the bacteria can be identified at a molecular level.
View map of states affected by outbreak