Diarrhea, upset stomach? Cyclosporiasis outbreak spreads across 18 states

HARRISBURG, Pa. — Health officials across the United States are investigating a multistate outbreak of cyclosporiasis, a parasitic illness that has sickened hundreds and may be significantly under-reported as the source remains unidentified. It causes severe stomach upset, vomiting and watery stools. The Centers for Disease Control and Prevention first detected clusters of the illness...