WASHINGTON, D.C. — The Centers for Disease Control and Prevention has linked a cyclosporiasis outbreak to 15 states, with reports of confirmed cases since May. The agency recorded 517 hospitalizations and two deaths among the individuals affected by the parasite.

Arkansas, Iowa, Missouri, Nebraska, New Hampshire, and North Carolina are among the states the CDC connected to the current outbreak. Foodborne outbreaks of cyclosporiasis, caused by the parasite Cyclospora cayetanensis, have been reported in the United States since the mid-1990s and have been linked to various types of fresh produce.

To facilitate the collection of standard data during investigations of cyclosporiasis outbreaks, the CDC is using the Cyclosporiasis National Hypothesis Generating Questionnaire. This tool assists health officials in gathering consistent information as they trace the source of the infections across multiple jurisdictions.

PureSource News reported on 2026-08-05 that bioMerieux reported a decline in cyclosporiasis test positivity in the United States. Earlier in the summer, PureSource News reported on 2026-07-24 that attorney Marler filed lawsuits against Taco Bell and Taylor Farms in an Ohio cyclospora outbreak.

The scale of this outbreak, with confirmed cases across 15 states, represents a public health event involving a pathogen that has circulated in the U.S. for decades. The use of the Cyclosporiasis National Hypothesis Generating Questionnaire indicates a structured approach to data collection that may help identify common sources among the diverse geographic locations involved.

Hospitalizations and deaths indicate the severity of the infections for vulnerable populations, while ongoing legal actions and industry reports reflect the broader economic and regulatory implications. The connection to fresh produce shows the challenges in tracking foodborne illnesses that can spread through complex supply chains affecting multiple states simultaneously.

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