Food Safety Expert Urges Rewashing Bagged Lettuce in Largest U.S. Cyclospora Outbreak
Updated
Updated · NBC Chicago · Jul 23
Food Safety Expert Urges Rewashing Bagged Lettuce in Largest U.S. Cyclospora Outbreak
1 articles · Updated · NBC Chicago · Jul 23
Summary
Brian Schaneberg advised consumers to rewash any bagged, cut or mixed lettuce and favor local whole heads as U.S. officials investigate the largest cyclosporiasis outbreak on record.
CDC and FDA have focused on certain lettuce products, but weeks into the probe they still have no confirmed positive Cyclospora product tests; an earlier Taylor Farms lettuce result was ruled a false positive.
Schaneberg said cooking greens to 158 F kills the parasite, while washing must be thorough—especially in leaf crevices—and noted lab confirmation typically takes 3 to 5 days.
He said the scale of thousands of infections points him toward contaminated irrigation or wash water, though there is still no evidence identifying Mexico or any other exact source.
Taylor Farms de Mexico voluntarily recalled all iceberg lettuce from central Mexico on July 17, underscoring how regulators and suppliers are acting before the outbreak source is confirmed.
If routine tests miss Cyclospora, how can consumers truly know their freshly washed grocery store greens are safe to eat?
Since the contaminated water source remains unconfirmed, could other crops from central Mexico also be quietly carrying this resilient parasite?
With nearly 2,000 sickened, could the elusive parasite behind this record-breaking outbreak be hiding in other fast-food chains beyond Taco Bell?
2026 Cyclospora Crisis: Tracking 11,500+ Cases, Widespread Lettuce Recalls, and Systemic Failures in U.S. Food Safety
Overview
The 2026 Cyclospora outbreak has become a nationwide crisis, with over 11,500 cases reported across 41 states. A major source was traced to iceberg lettuce from Taylor Farms de Mexico, leading to a large recall. However, vague recall notices and complex supply chains made it hard for consumers to identify affected products, prompting experts to advise discarding all iceberg lettuce in 29 states. The parasite contaminates crops through human waste in irrigation water and is extremely hard to remove, as standard washing and chemical sanitizers are ineffective. Centralized processing spreads contamination quickly, while slow testing and reduced surveillance have delayed outbreak response and public protection.