Explosive diarrhea parasite illness: A parasitic illness causing severe diarrhea is spreading across 17 US states, with over 145 cases reported and 20 hospitalizations. New York leads in infections, followed by Texas and Illinois. Health officials are investigating potential links to contaminated produce, though no specific source is identified. Symptoms include watery diarrhea and stomach cramps, with potential for prolonged illness. Experts are concerned as most cases lack recent international travel.