Michigan is witnessing its largest-ever outbreak of Cyclospora, a microscopic parasite that causes severe diarrhea, with nearly 1,000 people infected. The outbreak is also among the biggest reported in the United States in recent years, raising concerns among health authorities as investigators continue searching for the source of the infections.
Although no deaths have been reported, the Michigan Department of Health first alerted the public after more than 170 cases were detected in the state's southeastern region since June 22. The number has since surged.