Moisture Led to Peanut Butter Salmonella Outbreak

OMAHA, Neb. (AP) - ConAgra Foods says it knows the source of the salmonella bacteria that contaminated the Peter Pan peanut butter made at its Georgia plant last year.

A company spokesman says a nearly two-month investigation has determined it was moisture from a leaky roof and faulty sprinkler. The salmonella bacteria sickened more than 400 people nationwide.

ConAgra recalled all its peanut butter in February after federal health officials linked it to cases of salmonella infection. The company says it'll make sure Peter Pan peanut butter is safe when it returns to stores in mid-July.