Cyclospora Outbreak & Supply Traceback Workbench

Clinical Case & Exposure Intake Case #CYC-2026-8842

Suspect Produce & Brand

Retail / Restaurant Chain

FSMA Traceability Lot Code

Patron Meal Exposure Date

Symptom Onset Date (Watery Diarrhea)

Hospitalization Admission Date

7 days

Incubation Period

78.4%

Cyclospora Curve Fit

Pathogen Timeline Match: Calculated 7-day incubation falls directly within the established Cyclospora cayetanensis median window (2–14 days, typical peak 7 days).

FSMA Multi-Tier Produce Traceback Tree Click node to inspect Critical Tracking Event (CTE)

Cyclospora Incubation Probability Distribution (Log-Normal 2–14 Days) Onset: Day 7

Node Traceback Telemetry Line Wash CTE

Taylor Farms Processing Facility #3

Wash Line B Flume Tank (Salinas, CA)

Primary wash tank flume. Recirculated water with insufficient free chlorine / peracetic acid dosing allows unsporulated oocysts to distribute across high-volume shredded romaine lots.

Transmission Pathway Chain

Counterfactual Food Safety Interventions

Automated ClO₂ / ORP Sanitizer Dosing

Pre-Shipment Rapid PCR Oocyst Screen

FSMA 204 Electronic Lot-Hold Freeze

Traceback Action Recommendation

Issue immediate quarantine hold on Lot TF-ROM-8842-A, audit water sanitizer ORP logs, and trace downstream restaurant distribution batches.