RFK Jr. Says Cyclospora Outbreak Source is Identified days After the FDA Admitted Its Own Lettuce Test Was Wrong

Health and Human Services Secretary Robert F. Kennedy Jr. announced on July 21, 2026, that investigators have identified the source of a recent multistate Cyclospora outbreak affecting at least 1,600 people across five states. This statement came days after the FDA retracted an earlier positive test for Cyclospora contamination in shredded iceberg lettuce linked to Taco Bell locations, raising questions about the investigation’s accuracy and the ongoing recall.

Outbreak Source Linked to Shredded Iceberg Lettuce

Federal agencies, including the Centers for Disease Control and Prevention (CDC) and the Food and Drug Administration (FDA), initially connected a cluster of Cyclospora cases to shredded iceberg lettuce served at certain Taco Bell restaurants in five states. The implicated lettuce was traced back to Taylor Farms de Mexico, which sources its lettuce from central Mexico. Following these findings, Taylor Fresh Foods voluntarily recalled multiple lettuce products distributed across 27 states, with use-by dates extending into early August 2026.

Despite this early connection, the FDA’s laboratory later re-examined a lettuce sample initially reported as positive for Cyclospora and determined the result was a false positive. The agency clarified that the sample should not be treated as genuinely contaminated, complicating the investigation. Nevertheless, officials have maintained that the lettuce remains the identified source for the confirmed five-state outbreak cluster.

Kennedy’s Comments and the Ongoing Recall

In an interview with ABC News, Kennedy described the outbreak as “under control” and emphasized that epidemiological forensics had successfully pinpointed the source. He reiterated that recalls and preventive measures were already in place, aimed at limiting further infections. Kennedy dismissed criticisms of the federal response as “invalid,” highlighting that surveillance and investigative efforts continue to evolve as more data emerges.

While the recall remains active, the federal government and the companies involved have not released a full list of all affected Taco Bell locations linked to the contaminated lettuce. The ongoing recall and public health advisories aim to prevent additional exposures during the lettuce’s remaining shelf life.

Broader Cyclospora Cases Remain Under Investigation

Though the five-state outbreak tied to the Taco Bell lettuce cluster is identified, Cyclospora illnesses continue to be reported in at least 29 other states without a confirmed source. Federal officials caution that the lettuce-linked cluster does not account for all Cyclospora cases being investigated nationwide this summer. State health departments, including those in Michigan and Ohio, have reported higher numbers of cases that have yet to be linked to any specific food product.

This distinction is important for consumers and public health officials, as it means the total number of Cyclospora infections could be larger than the confirmed five-state outbreak. Investigations into other potential sources remain underway, with no additional products or restaurants officially identified at this time.

Challenges in Tracing Cyclospora Outbreaks

Investigating Cyclospora outbreaks presents unique difficulties. The parasite often contaminates fresh produce intermittently, making detection inconsistent. Additionally, the perishability of leafy greens complicates laboratory testing and traceback efforts. The FDA’s correction of the lettuce test result underscores these challenges, revealing the need for careful re-evaluation of lab findings before drawing conclusions.

Authorities rely on a combination of laboratory testing, supply chain traceback, and detailed patient interviews to piece together the source of outbreaks. The lettuce implicated in this cluster was sourced from central Mexico, prompting Taylor Farms to halt iceberg lettuce sourcing from that region for the remainder of the growing season as part of the industry’s response.

Political Scrutiny and Public Health Implications

The federal response has drawn scrutiny from lawmakers. Senator Jon Ossoff criticized the CDC’s FoodNet program for no longer requiring reporting of Cyclospora infections, suggesting this may hinder timely outbreak detection. Kennedy countered these claims, asserting that surveillance and epidemiological work are ongoing and robust.

For consumers in affected and neighboring states, the practical takeaway is to remain cautious about consuming shredded iceberg lettuce from implicated sources, heed recall notices, and be aware that investigations continue. Public health officials urge anyone experiencing symptoms consistent with Cyclospora infection—such as prolonged diarrhea, fatigue, and stomach cramps—to seek medical attention promptly.

As the investigation into Cyclospora infections progresses, federal and state agencies will continue to update the public. The confirmed five-state lettuce-linked outbreak highlights the complexities of foodborne illness investigations and the importance of coordinated efforts between regulators, industry, and healthcare providers to protect public health.