Escape of Salmonellae from Chlorination during Ingestion by Pristionchus lheritieri (Nematoda: Diplogasterinae).

Salmonella typhi and S. wichita survived 15 min in 10 ppm free chlorine solution during ingestion by the free-living nematode, Pristionchus lheritieri, and were viable when defecated in suitable media. S. typhi and S. wichita were recovered in 13.5 and 46.6% of the trials on five different media.