Cyclosporiasis Outbreak Worsens Across the U.S.: Latest Affected States

The Centers for Disease Control and Prevention (CDC) announced on Friday that the widespread cyclosporiasis outbreak in the United States has now reached nine states, confirming a total of 1,947 cases.

This marks the most significant outbreak of this illness ever recorded in the nation. Recently, Indiana, Kentucky, Ohio, and West Virginia have been added to the previously affected states of Illinois, Kansas, Oklahoma, Pennsylvania, and Michigan, with the latter being the hardest hit.

Expanding National Concerns

The national picture is increasingly alarming, with nearly 12,000 confirmed or suspected cases of cyclosporiasis reported, according to combined figures from the CDC and state health departments.

States Reporting New Cases

The following states have identified cases linked to the multi-state outbreak or are actively investigating:

• Michigan: Nearly 8,000 infections, serving as the outbreak's epicenter.
• Ohio: 2,596 cases; the CDC dispatched three employees to aid local investigations.
• New York: 632 cases recorded since May.
• North Carolina: 561 cases since May; preliminary investigations suggest parsley and cilantro as potential sources.
• Illinois, Kansas, Oklahoma, and Pennsylvania: All linked to the multi-state outbreak.
• Indiana, Kentucky, and West Virginia: Recently included in the cluster.
• Florida: Dozens of cases spread across more than 20 counties, with concentrations in Miami-Dade, Broward, and Lee.

Gwen Biggerstaff, Deputy Director of the CDC's Division of Foodborne, Waterborne, and Environmental Diseases, clarified that the outbreak's expansion doesn't necessarily indicate a surge in cases.

"We're gathering more comprehensive data that reflects the outbreak's reach. States are completing interviews with individuals, and we're finalizing the data," Biggerstaff explained.

Investigating the Source: Taylor Farms Lettuce

The Food and Drug Administration (FDA) has identified shredded iceberg lettuce from Taylor Farms in Mexico as the probable source of the outbreak. The company processed the product in Guanajuato and distributed it between June 29 and July 16 across 27 states before conducting a voluntary recall.

The lead emerged from interviews with affected individuals, many of whom had dined at Taco Bell in June before the outbreak peaked. The restaurant chain removed the lettuce from its menu prior to Taylor Farms' official recall.

Although an initial lab result confirming contamination was later deemed a false positive, the FDA emphasized that this does not change the underlying epidemiological evidence.

Kari Irvin, Deputy Director of the FDA's Coordinated Outbreak Response and Evaluation Network, stated, "The data we have now still points to the producers we've identified, though we're investigating whether other suppliers contributed to the outbreak."

Cyclosporiasis is caused by the parasite Cyclospora cayetanensis, which adheres to fresh produce and spreads through water or food contaminated with human feces. It is not transmitted from person to person. Symptoms, including severe watery diarrhea, cramps, nausea, fatigue, and mild fever, can manifest one to 14 days after exposure.

No fatalities have been reported from the outbreak so far, although at least 141 hospitalizations have been documented in the federal count as of mid-July.