More than 5,100 additional reports require further analysis as federal and state partners investigate several outbreaks and work to identify their sources.
To provide updated surveillance data on cyclosporiasis cases in the United States.
Approach:
Surveillance Data Collection: The CDC has received reports of 1,645 laboratory-confirmed domestically acquired cases since May 1, 2026, and is aware of over 5,100 additional reports requiring further analysis as of July 13, 2026.
Key Findings:
1,645 laboratory-confirmed domestically acquired cases reported from 34 states as of July 13, 2026.
141 patients were hospitalized, with no reported deaths among domestically acquired cases.
440 travel-associated cases reported from 35 states, with 20 hospitalizations and no deaths.
Interpretation:
The CDC anticipates an increase in reported case counts due to a 6-week lag in reporting and ongoing data collection.
Limitations:
Surveillance figures are preliminary and subject to change for the current reporting period.
The CDC's count includes only laboratory-confirmed cases.
Conclusion:
The CDC will issue surveillance updates more frequently this season due to the increase in reported cases.
