Cyclosporiasis outbreak impacts fast-casual restaurant sales and consumer habits

Health officials have confirmed a multi-state outbreak of cyclosporiasis, a parasitic infection that causes gastrointestinal illness. Investigations point to mass-processed lettuce and mixed-green products supplied to supermarkets and restaurant chains as a likely source. Taco Bell announced it is temporarily removing certain unnamed ingredients from locations in the Midwest and Appalachian regions.

Shares of publicly traded fast-casual operators, including Chipotle Mexican Grill, Sweetgreen, Cava Group and parent company Yum! Brands, fell this week amid the uncertainty. Restaurant staff in New York reported reduced foot traffic, with some locations noting a noticeable slowdown in customers ordering salads.

A Sweetgreen employee explained that the chain washes its vegetables multiple times before service but cautioned that pre-packaged greens sold in supermarkets may still pose a risk. > "Now, the place you really need to watch out for is the supermarkets," she said.

Consumers have responded by altering their purchasing and dining choices. A shopper in Los Angeles said he opted for vegetables that can be peeled or cooked rather than pre-packaged lettuce, noting that store employees reported increased customer inquiries about the outbreak. In Michigan, diners reported skipping boxed salads and requesting lettuce-free options at fast-casual outlets.

Nutrition experts and diners alike are favoring cooked vegetables, which can inactivate the parasite, over raw greens. Several individuals reported preparing their own meals or choosing cooked-vegetable dishes at restaurants to reduce exposure.

The outbreak continues to affect both the restaurant sector and grocery retail, with officials advising heightened vigilance when handling raw produce.