By Ethan Covey
Members of the swim team at a Massachusetts college were infected with Cryptosporidium spp., a highly chlorine-tolerant parasite, following a training trip to Puerto Rico.
Within a week of returning from the trip, 38% of the men’s and women’s swim teams had experienced diarrhea, prompting the school to contact the Massachusetts Department of Public Health (MDPH) (MMWR Morb Mortal Wkly Rep 2023;72:734-735).
Eighteen of the 19 symptomatic swimmers received testing, and