Four enrichment broths (Kauffmann's) tetrathionate broth Rappaport's medium an two modifications introduced in original formula of Rappaport broth's previously described), were compared for efficiency of detection of Salmonella from 158 sewage samples, obtained from two treatment sewage stations. In comparative trials, the modified Rappaport medium with tetrathionate and metachromgelb II RD, was highly effective for the recovery of a wide range of Salmonella enteritidis serotypes.