Investigation Announcement: Multistate Outbreaks of Human Salmonella Hartford and Salmonella Baildon Infections - Salmonella Hartford Case Map and Epi Curve

Confirmed Cases of Salmonella Hartford Infection, United States, by State as of 08/01/10 at 9pm EDT (n=75)

As of 9:00 PM EDT on August 1, 2010, a total of 75 individuals infected with a matching strain of Salmonella Hartford have been reported from 15 states since April 1, 2010. The number of ill people identified in each state with this strain is as follows: CO (1), FL (1), GA (1), IL (5), IN (11), KY (23), MA (2), MI (3), MT (1), NC (1), NH (1), NY (1), OH (19), PA (1), and WI (4). Among those for whom information is available about when symptoms started, illnesses began between April 30, 2010 and July 18, 2010. Case-patients range in age from <1 to 80 years old, and the median age is 39 years. Fifty-seven percent of patients are female. Among the 47 patients with available hospitalization information, 15 (32 %) were hospitalized. No deaths have been reported.

Confirmed Cases of Salmonella Hartford Infection, United States, by Date of Illness onset as of 08/01/10 at 9pm EDT (n=75)

These outbreaks can be visually described with a chart showing the number of people who became ill each day. This chart is called an epidemic curve or epi curve. Some Salmonella illnesses associated with these outbreaks that occurred after July 19, 2010, might not yet be reported due to the time it takes between when a person becomes ill and when the illness is reported. This takes an average of 2 to 3 weeks. For more details, please see the Salmonella Outbreak Investigations: Timeline for Reporting Cases.