USA – Big Olaf’s Ice Cream Listeria Outbreaks stands at 25 sick with 24 hospitalized with 1 death

Food Poison Journal

Epidemiologic Data

Since the last update on July 13, 2022, two more illnesses have been reported. As of August 2, 2022, a total of 25 people infected with the outbreak strain of Listeria monocytogenes have been reported from 11 states (see map). Thirteen sick people are residents of Florida and ten reported traveling to Florida before getting sick. Illnesses started on dates ranging from January 24, 2021, to June 24, 2022 (see timeline).

Sick people range in age from less than one to 92 years, with a median age of 72, and 56% are male. Of 25 people with information available, 24 have been hospitalized. One death in a person who was not pregnant has been reported from Illinois. Five people got sick during their pregnancy, and one person’s illness resulted in a fetal loss.

The true number of sick people in an outbreak is likely higher than the number reported, and the outbreak may not be limited to the states with known illnesses. This is because some people recover without medical care and are not tested for Listeria. In addition, recent illnesses may not yet be reported as it usually takes 3 to 4 weeks to determine if a sick person is part of an outbreak.

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