The latest data on reported cyclosporiasis cases released by the Florida Department of Health on Thursday show the state is now averaging about 53 cases a week since the start of summer in late June.

Cases of cyclosporiasis have now spread to 37 counties in Florida, with reported illnesses spiking by nearly 100 in just one week this month.

A parasite that causes extreme diarrhea, seen in recent outbreaks across the country, has been documented in over 25 counties in Florida -- and cases nearly doubled in one week, according to state data.

Federal and state health officials are investigating whether Taco Bell restaurants played a role in a multistate outbreak of cyclosporiasis, while Centers for Disease Control and Prevention surveillance data show hundreds of domestically acquired cases this season.

Federal health officials are monitoring a growing number of cyclosporiasis cases this summer, with 145 infections reported across 17 states as of mid-June 2026.