Cyclospora Outbreak in Multiple States Leads to Thousands of Cases

A cyclospora outbreak across the United States has resulted in thousands of new cases in recent days. The gastrointestinal illness, caused by the cyclospora parasite, started surfacing on May 1. Since then, there have been hundreds of hospitalizations, though no deaths have been reported.

Current Situation

As of July 28, the U.S. Centers for Disease Control and Prevention (CDC) has documented 6,707 cases of cyclosporiasis in 45 states since May 1, alongside 423 hospitalizations. This marks an increase of over 2,500 cases since July 21. Additionally, there are over 11,500 suspected cases pending confirmation or further investigation.

The CDC clarifies that updates exclude probable cases, which might result in differing figures between state-reported and CDC data.

Source of Outbreak

Federal officials have identified shredded lettuce from Taylor Farms as the source of the largest outbreak. Initially, lettuce served at Taco Bell restaurants in Indiana, Kentucky, Michigan, Ohio, and West Virginia was linked to the outbreak. Subsequently, customers in Illinois, Kansas, Oklahoma, and Pennsylvania were also affected.

On July 17, Taco Bell removed the implicated shredded lettuce from its U.S. outlets. Simultaneously, Taylor Farms expanded its voluntary recall of iceberg lettuce shipped from central Mexico to 27 states. Other potential sources remain under investigation.

States Reporting Rising Cases

• Michigan: The state reported 10,773 cases with 193 hospitalizations, including 1,373 new cases since July 27.
• Ohio: Reported cases reached 4,013 as of July 25, up from 2,576 cases similar to prior weeks.
• North Carolina: As of July 27, there are 718 cases and 24 hospitalizations. Recent updates show 157 new cases.
• Missouri: Cases doubled to 593 since last week.
• Florida: Cases rose to 254 from 158 as of July 18.
• Iowa: 226 confirmed cases so far this year, with fewer than ten new cases starting July 26.
• Virginia: 162 reported cases as of July 23, including 66 domestically acquired cases.

Understanding Cyclospora

Cyclospora is a microscopic parasite found in food exposed to human feces. Contaminated water used in washing or irrigation is a common pathway. Infected individuals may experience intense gastrointestinal symptoms, characterized by frequent, explosive bowel movements.

Unreported Cases

Official figures reflect only laboratory-confirmed cases investigated through public health systems. The CDC acknowledges the presence of over 11,500 more cases pending confirmation or analysis, including international travel investigation. The actual number of infections might be higher, as individuals can recover without seeking medical attention and not undergo testing.