Parasite outbreak sweeps 31 US states as health officials warn of hidden cases

Health & Fitness
14 Jul 2026 • 2:34 PM MYT
The Independent
The Independent

The world’s most free-thinking newspaper

Parasite outbreak sweeps 31 US states as health officials warn of hidden cases

  • A parasitic outbreak causing severe gastrointestinal illness, cyclosporiasis, has spread to 31 U.S. states, as reported by federal and state health officials.
  • The Centers for Disease Control and Prevention (CDC) has confirmed 843 domestic cases since May 1, leading to 86 hospitalizations, with no reported deaths.
  • Federal officials indicate that the actual number of infections is significantly higher than reported figures due to data processing backlogs and many individuals not seeking medical attention.
  • The illness is caused by Cyclospora cayetanensis, a microscopic parasite transmitted through water or fresh produce contaminated with human feces, with symptoms including severe watery diarrhea.
  • Although a specific food source for the current outbreak remains unidentified, historical outbreaks have been linked to fresh herbs and produce.

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