NYC cyclosporiasis cases rise to 273, with city and federal agencies still searching for the source

New York City has confirmed 273 cyclosporiasis cases since May 1, according to reporting published July 8, as health officials continue trying to identify the source.

The city’s health department said the 2026 total for New York City stood at 301 cases at the time of reporting. Officials said the cases include people with and without recent international travel, and investigators have not identified a single food source.

What officials know so far

City, state, federal and food-safety investigators are still tracing exposures linked to the outbreak. The New York State Department of Health has also reported additional cases since May 1, adding to the broader picture in New York.

The CDC has previously said the nationwide count of domestically acquired cyclosporiasis cases reached 145 across 17 states between May 1 and June 16, with 20 hospitalizations. The agency also said the true number of cases was likely higher than the reported total.

Why it matters

Cyclosporiasis is a parasitic infection linked to contaminated food or water, and it is not spread person to person. Symptoms can include watery diarrhea, cramping, nausea, vomiting, fatigue and sometimes fever.

Health officials say outbreaks have historically been tied to produce items such as cilantro, basil, salads, berries and lettuce, but no specific ingredient or distribution chain has been named in this outbreak.

What happens next

Investigators will keep comparing patient food histories, travel histories and case clusters to see whether the New York City illnesses are part of a wider multistate event or a separate local cluster.

Counts may continue to rise through the summer as more cases are identified and reported.