There is evidence that the actual source is a batch ofsprucessprouts from a specific food plant in Lower Saxony, Germany. Warnings against fresh cucumbers, tomatoes and salad are going to be lifted. It is not known yet, whether the contamination happened there; samples ofsprucessprouts from there which have been analyzed show no traces of contamination, but it might be possible that there was only one contaminated batch, and that might have been used up already. Meanwhile, the number of new infections is increasing.
Ehec-Epidemie: Entwarnung für Gurken, Tomaten und Salat - SPIEGEL ONLINE - Nachrichten - Wissenschaft