Investigation Announcement: Multistate Outbreak of Human Typhoid Fever Infections Associated with Frozen Mamey Fruit Pulp

Confirmed and probable cases infected with the outbreak strain of Salmonella Typhi, by state, as of August 12, 2010 (n=9)

As of 9:00am EDT on August 12, 2010, a total of 7 confirmed and 2 probable individuals infected with a matching strain of Salmonella serotype Typhi have been reported from 2 states since May 25, 2010. Confirmed cases are persons with illness on or after January 1, 2010 and a DNA fingerprint matching the outbreak strain.Probable cases are persons with a Salmonella Typhi infection and a strong epidemiologic link to the outbreak. The number of ill persons identified in each state with this strain is as follows: CA (3 confirmed and 2 probable) and NV (4 confirmed).

Among the persons with reported illness onset dates available, illnesses began between April 10, 2010, and July 23, 2010. Infected individuals range in age from 4 to 31 years old and the median age is 21 years. Sixty-seven percent (67%) of cases are female and 100 percent report Hispanic ethnicity. Among the 7 patients with available clinical information, 5 (71%) were hospitalized. Five (83%) of 6 patients interviewed reported no international travel in the 60 days prior to illness onset. As of August 12, 2010, no deaths attributed to this infection have been reported.