Mystery over what REALLY caused 'explosive diarrhea' parasite as FDA admits lettuce that was first to blame was a 'false positive'

By Daily Mail (U.S.) | Created at 2026-07-20 13:36:50 | Updated at 2026-08-09 06:05:43 2 weeks ago

1. Homepage
2. U.S.
3. Mystery over what REALLY caused 'explosive diarrhea' parasite as FDA admits lettuce that was first to blame was a 'false positive'