A parasitic infection outbreak in Michigan has grown to over 1,000 cases, with nearly 1,000 people diagnosed. The infection can cause weeks of watery diarrhea.

No deaths have been reported, but the source of the infections remains unknown. Michigan officials are investigating, and other states, including Ohio, are also looking into similar illnesses.

Further details about the outbreak, including the latest updates and information on the investigation, are available from the source. The outbreak is notable for being the largest in Michigan's history and one of the largest in the nation in recent years.