Mystery Listeria Outbreak Sickens 2 In Wisconsin: CDC

WISCONSIN — Wisconsin is the latest state where residents were sickened by a mysterious Listeria outbreak. The Centers for Disease Control and Prevention reported Friday that two people in the Badger State were recently infected by the illness, the source of which is still not known.

A total of 18 patients across 15 different states have been confirmed in the outbreak, but the CDC said the true number is likely higher. Federal health officials began publicly documenting the outbreak on Feb. 15.

Of the 18 documented patients, 17 were hospitalized. No deaths have been reported. There was one pregnancy-associated illness in a newborn.

The median age of the 18 patients is 73.

Listeriosis is a serious infection usually caused by eating food contaminated with listeria. With a link to a specific food as yet unidentified, the CDC said the illnesses are concerning.

Listeria infections are rare, the agency said but can result in a serious illness or death.

Listeria is especially harmful to pregnant women, people 65 and older, or anyone with a weakened immune system. People who have Listeria symptoms should contact their healthcare provider right away.

Symptoms can include fever, muscle aches, headache, stiff neck, confusion, loss of balance and convulsions. Pregnant women: Pregnant women typically experience only fever and other non-specific symptoms, such as chills and headaches.