U.S. and Mexican officials have been working closely together to find the source or sources of contamination of Salmonella in fresh papayas entering the U.S. from Mexico. From May 12, 2011, to August 18, 2011, FDA analysis found a 15.6 percent Salmonella contamination rate. The positive samples were from 28 different firms and include nearly all the major papaya producing regions in Mexico.

Papayas from Mexico have been linked to approximately 100 cases of Salmonella Agona in 23 U.S. states.

Under a U.S. Food and Drug Administration (FDA) Import Alert issued today, papayas from each source in Mexico may be denied admission into the United States unless the importer shows they are not contaminated with Salmonella, such as by using private laboratories to test the papayas. FDA may consider five consecutive commercial shipments over a period of time, analyzed from a validated laboratory, as being adequate for removal from the Import Alert.

Simultaneously, FDA and Mexican officials are stepping up their joint effort to trace recent contamination incidents back to their source and discover their cause or causes, in order to inform future prevention strategies. FDA and Mexican officials also are collaborating on laboratory methodologies used in Mexico for testing fresh papayas for Salmonella.

Beyond these immediate steps, the Mexican government and papaya industry have agreed to a longer range action plan that will define proper food safety procedures throughout the chain of production and distribution in Mexico and verify that the procedures are working effectively through product testing and other government oversight. Mexican officials are overseeing the industry’s implementation of the action plan and the FDA is collaborating with the Mexican government in this effort.