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Investigation Update: Multistate Outbreak of Human Salmonella Altona and Salmonella Johannesburg Infections Linked to Chicks and Ducklings

Persons infected with the outbreak strains of Salmonella Altona and Salmonella Johannesburg, by month of illness onset*

Chart showing bar graph indicating numbers of peopleinfected with the outbreak strains of Salmonella Altona and Salmonella Johannesburg, by known or estimated illness onset

Onset data not currently available for all persons with reported illness.

*n=94 for whom information was reported as of October 4, 2011

Salmonella Altona

Among the persons with reported dates available, illnesses began between February 25, 2011 and September 10, 2011. Infected individuals ranged in age from less than one year old to 92 years old, and 31% of ill persons were 5 years of age or younger. Fifty-one percent of patients were female. Among the 62 patients with available information, 19 (31%) were hospitalized. No deaths were reported.

Salmonella Johannesburg

Among the persons with reported dates available, illnesses began between March 19, 2011 and July 29, 2011. Infected individuals ranged in age from less than one year old to 60 years old, and 75 percent of ill persons were 5 years of age or younger. Fifty-seven percent of patients were female. Among the 22 patients with available information, 9 (41%) were hospitalized. No deaths have been reported.