A significant increase in cases of cyclosporiasis, an intestinal illness characterized by diarrhea and nausea, has been identified in 31 states across the United States. Federal health authorities are currently investigating the outbreak, but the source of the infections remains unknown as of July 12, 2026.

Health officials continue to monitor the situation closely to determine the cause and to implement measures to control the spread of the illness.

Sources

  • NPR News, "What to know about the cyclosporiasis outbreak hitting more than half of U.S. states," July 12, 2026, link