Thousands of cyclosporiasis cases, a gastrointestinal illness that can cause severe diarrhea, have been confirmed or are under investigation across the United States, but not in California.
The California Department of Public Health announced that the Golden State is not among the states seeing an increase, and no local outbreaks have been identified.
So far in 2026, California has reported fewer cases than last year. From January through June, the state recorded 41 provisional cases, compared to 80 during the same period in 2025, according to officials.
Taco Bell investigated as part of cyclospora parasite outbreak, report says
Annual averages from 2015 to 2025 were 106 cases, with a range of 15 to 240. Current 2026 numbers fall within expected levels.
“California experiences cases of cyclosporiasis every year, with most acquired internationally,” Dr. Erica Pan, CDPH director and state public health officer, said in a statement. “Cases for 2026 are well within expected ranges, and we are not currently one of the states experiencing increased cases or an outbreak. We are aware of the outbreaks affecting other states and are closely monitoring for any signs of locally acquired infection.”
Because several Eastern and Midwestern states are reporting significant increases, CDPH is monitoring for cases associated with travel to affected areas and for clusters that may indicate local transmission. Officials expect some infections among Californians returning from impacted regions during summer travel.
Dave & Buster’s will host a national rave tour as chain expands into nightlife
Prevention Tips
While California’s case numbers remain stable, CDPH urges residents to follow these prevention steps:
Wash hands with soap and water before and after handling raw fruits and vegetables.
Wash all produce thoroughly under running water before eating, cutting or cooking. Scrub firm produce with a clean brush.
Remove and discard outer leaves from lettuce and leafy greens.
Vulnerable populations — including older adults, young children, pregnant people and immunocompromised individuals — should cook vegetables and herbs when practical.
Prevent cross‑contamination by using clean cutting boards, utensils and food‑contact surfaces. Keep ready‑to‑eat foods separate from raw produce.
Refrigerate cut, peeled or cooked produce within two hours.
Avoid food or water that may be contaminated with human feces, especially when traveling to countries where tap water or food may be unsafe.
If you become ill, CDPH urges you to contact a health care provider and specifically request testing for Cyclospora. Cyclosporiasis is treated with antibiotics, along with rest and hydration.
Most foodborne outbreaks in the U.S. have been linked to imported fresh produce, including raspberries, cilantro, basil, snow peas and mixed salad greens. Washing produce helps reduce risk but may not fully remove Cyclospora; cooking is recommended when possible.
More information about cyclosporiasis and safe food and water habits can be found here.
Copyright 2026 Nexstar Media, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.
For the latest news, weather, sports, and streaming video, head to KTLA.