The Moroccan Food Snail, Helix aspersa, as a Source of Salmonella

摘要

A total of 270 samples, nine lots of 30 samples each, of imported Moroccan food snails was examined for the presence of Salmonella. Eighty-four samples (an overall incidence of 31.11%) and all nine lots contained Salmonella. No significant difference (P > 0.25) in the number of positive samples was observed by using either selenite cystine broth or tetrathionate broth when the samples had been pre-enriched in lactose broth. When used as direct selective enrichments with samples not pre-enriched in lactose broth, tetrathionate broth was significantly (P Salmonella-positive samples by direct enrichment was significantly greater (P Salmonella in one species of live, imported food snails.