Health officials report a rapid increase in cyclosporiasis, a parasitic illness that causes severe, watery diarrhea. Reporting cited by multiple outlets says the outbreak is worsening in Michigan, with the number of reported cases more than tripling over the past week. The Guardian reports that nearly 700 cases are reported to Michigan’s health department by Monday, up from 170 six days earlier, and notes this figure is far above the state’s typical annual caseload of about 50. ABC News is also referenced in the reporting. Gizmodo similarly says hundreds of new cases have been reported as the outbreak continues to expand. The coverage describes the illness’s symptoms, including “explosive” diarrhea, and characterizes the growth in cases as unusually fast. While the reports focus mainly on Michigan, they also describe increases across multiple U.S. states, reflecting a broader pattern of rising notifications tied to the same illness.