FDA Investigates Cyclospora Outbreak Linked to Taylor Farms Lettuce

Confusion Surrounds Cyclospora Outbreak as FDA Investigates Further

The quest to pinpoint the origins of a Cyclospora outbreak remains unresolved, following the Food and Drug Administration’s (FDA) recent clarification. Initially, a sample from Taylor Farms de Mexico tested positive for the parasite, but subsequent analyses deemed it a false positive.

In a press release, the FDA stated, “The finding does not represent true amplification and should be considered a false positive.” Despite this revelation, the agency emphasized on social media that the false-positive result “DOES NOT change the basis for FDA’s ongoing outbreak investigation or the overwhelming epidemiological data supporting the current voluntary recall by Taylor Farms.”

The FDA’s advice remains firm: avoid consuming iceberg lettuce produced by Taylor Farms in Mexico. This recommendation affects products distributed to Taco Bell locations across Indiana, Kentucky, Michigan, Ohio, and West Virginia. Taco Bell has since ceased using the implicated lettuce. Additionally, the affected products reached 27 states and select Walmart stores in 15 states. Consumers are urged to dispose of any recalled iceberg lettuce from Taylor Fresh Foods.

Interviews with individuals who fell ill, many of whom dined at Taco Bell, largely informed this recommendation. The FDA continues to examine lettuce samples and monitor produce at the southern border for Cyclospora, yet no positive results have emerged thus far.

Currently, the outbreak has led to over 1,600 confirmed cases and numerous suspected infections. Hospitalizations have reached 94, although no fatalities have been reported. Taylor Farms stated that the FDA has not identified any positive product tests for Cyclospora. The company initiated a voluntary recall of all iceberg lettuce from central Mexico on July 17 and declared they are “no longer sourcing iceberg lettuce grown in central Mexico for the remainder of the growing season.”

The parasite, responsible for symptoms such as diarrhea, fatigue, and nausea, is best avoided by cooking produce to at least 158 F. Thorough washing with water can mitigate the risk of cyclosporiasis. Experts note that despite this year’s potential for record outbreaks, cyclosporiasis occurrences are typical each summer.

According to Donald Schaffner, a microbiologist from Rutgers University, “Just because you’re sick with Cyclospora right now doesn’t mean that you’re part of this cluster of cases that have an epicenter in Michigan and Ohio.” He explains that these outbreaks are often unrelated clusters, adding, “Sometimes we can figure out what’s causing it, and sometimes we can’t.”

Schaffner also highlights that the parasite can be encountered via non-food sources, like water used for drinking or swimming, or in irrigation water for crops. This complexity underscores the challenge of swiftly identifying the outbreak’s source.