Learn more about food safety supply chain management & traceability during the 2020 Food Safety Consortium Virtual Conference SeriesThe FDA and CDC have been investigating a multistate outbreak of Cyclospora involving bagged salads from Fresh Express since June. Although the products were recalled and should no longer be available in retail locations, the CDC continues to report more cases. As of August 12, 2020, the CDC counted 690 people with laboratory-confirmed Cyclospora infections throughout 13 states. Thirty-seven people have been hospitalized, and no deaths have been reported.
As the FDA conducted its traceback investigation to find the source of the outbreak linked to the Fresh Express products, the agency was able to identify several farms. It analyzed water samples from two public access points along a regional water management canal (C-23) west of Port St. Lucie, Florida. Using the FDA’s validated testing method, the samples tested positive for Cyclospora cayetanensis. However, it is important to note that the Cyclospora found might not be a direct match to the pathogen found in the clinical cases.
According to FDA: “Given the emerging nature of genetic typing methodologies for this parasite, the FDA has been unable to determine if the Cyclospora detected in the canal is a genetic match to the clinical cases, therefore, there is currently not enough evidence to conclusively determine the cause of this outbreak. Nevertheless, the current state of the investigation helps advance what we know about Cyclospora and offers important clues to inform future preventive measures.”
The agency’s traceback investigation is complete, but the cause or source of the outbreak has not been determined. The investigation also revealed that carrots are no longer of interest at as part of the outbreak, but red cabbage and iceberg lettuce are still being investigated. FDA is also working with Florida and the area’s local water district to learn more about the source of Cyclospora in the canal.
In the latest FDA update about the E. coli O157:H7 outbreak involving romaine lettuce, the agency has stated that consumers should not eat romaine lettuce that has been harvested from Salinas, California. Traceback investigations related to three different E. coli outbreaks (three different strains, all of which involve romaine lettuce) have pointed to a common grower located in Salinas. Frank Yiannas, deputy commissioner for food policy and response, called the identification of a common grower a “notable development” but also stated in a press announcement, “Because of the expansive nature of these outbreaks, our investigation remains a complicated work in progress, and it is too soon to draw definitive conclusions.”
FDA, CDC and California partners have sent out a team to conduct new investigations at ranches used by the grower as part of the process in finding the contamination source, according to an FDA update.
Thus far, 102 illnesses have been reported across 23 states, with 58 hospitalizations. No deaths have been reported. The last illness onset was reported on November 18.
Thus far Swedesboro, NJ-based Missa Bay, LLC has recalled more than 75,000 pounds of salad products because of a lettuce ingredient that might be contaminated with E. coli O157:H7. This lettuce was also found to be in packaged salad that the Maryland Department of Health said contained E. coli.
FDA states that thus far lettuce grown indoors has not been indicated in the outbreak.
Yesterday FDA provided an update on the multistate outbreak of Cyclospora infections “likely” linked to people who consumed salads from McDonald’s. The outbreak spans across 15 states and has infected 476 people, 21 of whom have been hospitalized. According to FDA’s latest release, the agency is reviewing distribution and supplier information for romaine lettuce and carrots.
Last month, USDA’s FSIS issued a public health alert on beef, pork and poultry salads and wraps, distributed by Caito Foods, LLC, that were potentially contaminated with Cyclospora. Fresh Express, Caito Foods’ supplier, had notified the company that the products with romaine lettuce were being recalled. However, no products related to this particular outbreak have been recalled, according to FDA. In addition, McDonald’s has reportedly ceased using the Fresh Express salad mix at restaurants impacted by the outbreak.
FDA stated that it currently does not have evidence suggesting that this Cyclospora outbreak is connected to the Cyclospora outbreak linked to Del Monte vegetable trays.