Cyclosporiasis parasitic illness cases in Maryland increase by dozens since May 1 – CBS News
Cyclosporiasis, a parasitic illness linked to severe diarrhea, has infected hundreds of people in at least 18 states, including here in Maryland.
Maryland is investigating a rise in cases of cyclosporiasis, a parasitic illness linked to severe diarrhea.
The state’s Department of Health has had 32 confirmed cases of cyclosporiasis in 2026, with 28 reported since May 1. MedStar Health said that at least one case was confirmed in Baltimore.
The Centers for Disease Control and Prevention says cyclosporiasis has infected hundreds of people in at least 18 states, and health officials are still trying to pinpoint the source.
A common link for the cases reported from May 1 to July 7 has not been identified, the Maryland Department of Health said.
Maryland health officials say the summer and spring months are when cyclosporiasis cases increase, mainly from May 1 through August 31.
In Maryland, there were 128 confirmed cases in 2025, with 18 reported from May 1, 2025, to July 7, 2025. In 2024, there were 204 confirmed cases in Maryland, with 19 reported between May 1 and July 7.
