Timeline of Reported Cases

Final Update

Posted October 2, 2019 at 3:00 PM ET

This outbreak investigation is over. CDC and public health officials in several states investigated a multistate outbreak of Salmonella infections linked to contact with pet hedgehogs. Hedgehogs can carry Salmonella even when they look healthy and clean. Pet hedgehog owners can take steps to reduce the chance that they or their children get an infection.

People infected with the outbreak strain of Salmonella Typhimurium, by date of illness onset*

Epi curve of people infected with the outbreak strain of Salmonella, by date of illness onset, as of October 2, 2019

*n=54 for whom information was reported as of September 26, 2019. Some illness onset dates have been estimated from other reported information.

Previous Timelines

People infected with the outbreak strain of Salmonella Typhimurium, by date of illness onset*

Epi curve of people infected with the outbreak strain of Salmonella, by date of illness onset, as of July 31, 2019

*n=47 for whom information was reported as of July 31, 2019. Some illness onset dates have been estimated from other reported information.

Illnesses that started after May 28, 2019 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 4 weeks.

People infected with the outbreak strain of Salmonella Typhimurium, by date of illness onset

Epi curve of people infected with the outbreak strain of Salmonella, by date of illness onset, as of May 30, 2019

n=27 for whom information was reported as of May 30, 2019. Some illness onset dates have been estimated from other reported information.

Illnesses that started after April 16, 2019 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 4 weeks.

People infected with the outbreak strain of Salmonella Typhimurium, by date of illness onset

Epi curve of people infected with the outbreak strain of Salmonella, by date of illness onset, as of March 27, 2019

n=17 for whom information was reported as of March 27, 2019. Some illness onset dates have been estimated from other reported information.

Illnesses that started after March 1, 2019 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 4 weeks.

People infected with the outbreak strain of Salmonella Typhimurium, by date of illness onset

Epi curve of people infected with the outbreak strain of Salmonella, by date of illness onset, as of January 23, 2019

n=11 for whom information was reported as of January 23, 2019.

Illnesses that started after December 27, 2018 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 4 weeks.