CDC Update on Cantaloupe Listeriosis Outbreak

On  September 14, 2011, FDA issued a press release to announce that Jensen Farms in Granada, Colorado had issued a  voluntary recall of its Rocky Ford-brand cantaloupes after they were linked to  a multistate outbreak of listeriosis.  Investigation of this outbreak indicated that the first cases occurred on July 31, with the majority of cases identified in August and September.  As of October 11, the US Centers for Disease Control and Prevention (CDC) indicated that a total of 116 persons had been identified as being infected with one of the four strains of Listeria monocytogenes associated with this outbreak, and 23 deaths have been reported.  The following map shows the distribution of Listeriosis cases in the 25 states where illnesses associated with this outbreak have been reported.

Persons infected with the outbreak-associated strains of Listeria monocytogenes, by state, October 11, 2011

Additional information on this outbreak, including recommendations to consumers on how to safely handle cantaloupes and other melons, is available from the CDC at the following URL:


About Les Bourquin

Professor and Food Safety Specialist Department of Food Science and Human Nutrition Michigan State University
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