Fig. 1.

General overview of the possible distribution channels* by which potentially contaminated producer A romaine lettuce-containing salad products were supplied from Mexico-origin growers and fields (growing lots) through distributors X†, D, or P to locations reported by persons ill with cyclosporiasis – multiple US states, May–June, 2013. (* This flowchart is provided only as an overview of the various growers and distribution channels described herein. Accordingly, the channels depicted are not intended to demonstrate product movement from a specific grower to any specific final end point-of-service. † Distributor X did not have a single physical location. The product was delivered directly to this company's various distribution hubs by producer A.)