U.S. health agencies have linked a cyclosporiasis outbreak to shredded iceberg lettuce served at some Taco Bell locations [1].
The outbreak is significant because it has sickened thousands of people [1] across multiple states, highlighting vulnerabilities in the international produce supply chain.
The Food and Drug Administration (FDA) and the Centers for Disease Control and Prevention (CDC) identified the cause as the Cyclospora parasite [2]. According to an FDA traceback, the contaminated lettuce was sourced from a single supplier in Mexico [3].
Confirmed cases have appeared in at least five U.S. states [4]. In North Carolina alone, more than 300 cases have been reported [5]. The illness, known as cyclosporiasis, typically causes severe intestinal distress and explosive diarrhea [2].
Health officials said they are continuing to monitor the situation as they work with the fast-food chain to remove the contaminated product from the supply chain [1]. The parasite is often associated with fresh produce that is not cooked before consumption, making raw lettuce a common vector for the illness [2].
Taco Bell has not provided a detailed public statement regarding the specific number of locations affected, but the FDA's investigation focused on the shredded iceberg lettuce used in their menu items [3].
“thousands of people have been sickened with cyclosporiasis”
This outbreak underscores the difficulty of regulating fresh produce sourced from international suppliers. Because Cyclospora is a hardy parasite that can survive various washing processes, the incident may lead to stricter FDA oversight of imported leafy greens and a push for more rigorous testing at the source in Mexico to prevent similar multi-state outbreaks.
