US health officials are investigating a new outbreak of a diarrhea-causing parasite07/24/2026(Associated Press) - U.S. health officials are investigating a new outbreak involving the diarrhea-causing parasite cyclospora. The outbreak included 72 people as of Wednesday. The Food and Drug Administration has not yet identified which products are linked to the illnesses. Officials also have not said where the cases are located. The FDA earlier this week said it remained focused on lettuce from Taylor Farms as the source of a separate, multistate cyclospora outbreak. The parasite infects food that has come into contact with human feces, most commonly when produce is irrigated or washed with contaminated water.