Cyclospora outbreak expands to 15 US states with 10,468 confirmed cases and two deaths

Outbreak expands to 15 states

The CDC added six states (Missouri, Arkansas, Iowa, Nebraska, New Hampshire and North Carolina) to the cyclospora outbreak investigation on 4 August, bringing the total to 15. The expansion was reported by the Washington Post, citing three people familiar with the matter, and confirmed by Arkansas health officials. Missouri, with over 1,000 cases, is among the new additions; patients there told investigators they ate at Taco Bell before falling ill, according to state health department spokesperson Lisa Cox. The nine states already linked to Taco Bell exposure are Illinois, Indiana, Kansas, Kentucky, Michigan, Ohio, Oklahoma, Pennsylvania and West Virginia.

Michigan reports first deaths

Michigan remains the hardest-hit state, reporting 11,508 cases on 4 August, up from 11,234 the previous day. The state also confirmed the outbreak's first two fatalities, both in individuals with significant underlying health conditions. The Michigan Department of Health and Human Services said the infections are not generally life-threatening, but dehydration and pre-existing illnesses can worsen outcomes. The parasite causes watery, sometimes explosive diarrhea, along with abdominal cramps, nausea, fatigue and appetite loss.

Source traced to Taylor Farms lettuce

The FDA traced one large cluster of illnesses to shredded iceberg lettuce from Taylor Farms' operations in central Mexico, served at Taco Bell restaurants. On 17 July, Taylor Farms voluntarily recalled all iceberg lettuce sourced from that region. A sample later tested positive for Cyclospora, but the FDA said it was a false positive; the agency stressed that the result does not undermine the epidemiological data supporting the recall.

“Based on ongoing conversations with public health officials, and out of an abundance of caution, Taco Bell worked swiftly to voluntarily remove the product from restaurants and the affected ingredient has been removed from our supply chain nationwide.”

Nationwide case count and response

As of 4 August, the CDC had recorded 10,468 laboratory-confirmed cases of cyclosporiasis, along with more than 12,255 unconfirmed cases and 517 hospitalizations. Cases have been reported in 45 states since May, though the outbreak linked to Taco Bell is concentrated in the 15 states now under investigation. The CDC's surveillance typically lags state reporting; earlier, on 28 July, the agency had logged 6,707 confirmed cases. The current outbreak is the largest known in the US, surpassing the roughly 4,700 cases recorded in 2019.

Consumer impact and expert advice

A study cited by The Conversation found that Americans have reduced purchases of fresh fruits and vegetables by 40% since the outbreak began. Immunologist Lisa Spoon advised against eliminating fresh produce entirely, instead recommending washing even pre-packaged, pre-washed vegetables. She noted that the parasite can resist some sanitizers and that packaged greens can still carry harmful germs after long supply chains.

“Instead of avoiding fresh produce, adopting some sensible food safety practices can help significantly reduce the risk of getting sick.”

Economic fallout

Yum Brands, Taco Bell's parent company, reported that sales at the chain slipped about 2% in the current fiscal quarter, which it attributed to the cyclospora outbreak. The recall and consumer caution have rippled through the fresh produce supply chain, though health officials stress that thorough washing and cooking reduce risk.

2026-07-31

10773 cases

2026-08-03

11234 cases

2026-08-04

11508 cases

Data from the article text