ATLANTA -- A salmonella outbreak has prompted a recall of peanut butter.
The Food and Drug Administration says the outbreak began last summer and was just recently traced to peanut butter made at a single ConAgra plant in Sylvester, Georgia. The spread being recalled was sold under the Peter Pan and Great Value brands. The only jars affected have a product code beginning with the number "2111" on the lid.
It's believed to be the first salmonella outbreak associated with peanut butter in US history.
Federal health officials say, since August, the outbreak has grown slowly to nearly 300 cases in 39 states. About 20 percent of those infected had to be hospitalized. All survived.
The largest number of cases were reported in New York, Pennsylvania, Virginia, Tennessee and Missouri.
Authorities still don't know how the salmonella got into the peanut butter.
The FDA says that Great Value peanut butter made by other manufacturers is not affected.