http://www.cdc.gov/ncidod/dbmd/diseaseinfo/salmonellosis_2007/outbreak_notice.htm
National Center for Infectious Diseases, Centers for Disease Control and Prevention
Public health officials in multiple states, with the assistance of the Centers for Disease Control and Prevention (CDC) and the U.S Food and Drug Administration (FDA), are investigating a large multistate outbreak of Salmonella serotype Tennessee infections. FDA has advised consumers not to eat any Peter Pan peanut butter purchased since May 2006 and not to eat Great Value peanut butter with a product code beginning with 2111 purchased since May 2006. Peter Pan peanut butter is made in a single facility in Georgia. Great Value peanut butter with a product code beginning with 2111 is made in the same facility as Peter Pan peanut butter; Great Value peanut butter made by other manufacturers is not affected.