Doctors warn your 'stomach bug' may actually be a parasite that's harder to detect

U.S. health officials warn that a widespread summer stomach bug may actually be cyclosporiasis, a parasitic infection causing severe gastrointestinal symptoms. Over 1,600 confirmed cases and 5,100 under investigation have been reported since May, with symptoms lasting longer and being more severe than typical stomach bugs. Diagnosis requires specific testing not included in standard stool analyses.