This claim is true because cyclosporiasis is difficult to measure accurately due to underreporting, challenging testing, incomplete case confirmation, and difficulties linking infections across outbreaks.
True
The number of people who have cyclosporiasis is difficult to determine accurately.
Why is tracing the source of cyclosporiasis outbreaks so difficult? - Science | AAAS
Source: science.org
At a glance
Verified August 14, 2026Key Evidence
The Hill states that confirmed cases are probably substantially lower than the true number of illnesses, while ABC News reports that testing is difficult. USA on August 14, 2026 documents discrepancies between state and CDC counts, and ASTHO explains that linking infections is especially difficult because whole-genome sequencing is unavailable for Cyclospora.
The reporting
What the Evidence Shows
The available sources consistently support the statement that the number of people with cyclosporiasis is difficult to determine accurately.
- The Hill reports that confirmed U.S. Cases likely understate the true number of illnesses, indicating that many infections are not captured by official surveillance.
- ABC News describes testing for cyclosporiasis as challenging, which can prevent suspected infections from becoming confirmed cases.
- Science and ASTHO identify additional investigative barriers, including the parasite's biology, logistical constraints, limited resources, and the lack of whole-genome sequencing for reliably linking cases to one another.
- USA Today illustrates a separate counting problem: state-reported totals may differ from CDC totals because cases have not yet been officially confirmed and transmitted to the federal agency.
- CIDRAP, NBC News, NPR, and ABC News describe uncertainty about the outbreak's scale, geographic connections, and source. These issues make it harder to distinguish confirmed cases from the broader number of people who may have been infected.
The claim does not specify a particular year, outbreak, or exact case total. Within the context of the 2026 U.S. Outbreaks described by the sources, the evidence supports it directly.
Primary trail
Verified Sources10
Open source