Abstract
A total of 197 Salmonella strains were isolated from 1717 stool samples on salmonella-shigella agar and modified semisolid Rappaport-Vassiliadis medium before and after enrichment in selenite broth. Better sensitivity was obtained with salmonella-shigella agar than in direct plating (89.2% vs. 64.4%, P<0.0001) and after broth enrichment (96.4% vs. 88.1%, P<0.01). The incidence of false-positive results using modified semisolid Rappaport-Vassiliadis medium was higher than that obtained using salmonella-shigella agar combined with the oxidase and C8 esterase tests in direct plating (33 vs. 2 strains) and after enrichment (43 vs. 0 strains). Thus, based on its performace modified semisolid Rappaport-Vassiliadis medium could be a suitable option for isolation of salmonellae from stool samples in clinical microbiology laboratories.
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Ruiz Gomez, J., Lorente Salinas, I., Perez Salmerón, J. et al. Evaluation of Methods for Isolation of Salmonella Species using Modified Semisolid Rappaport-Vassiliadis Medium and Salmonella-Shigella Agar. EJCMID 17, 791–793 (1998). https://doi.org/10.1007/s100960050188
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DOI: https://doi.org/10.1007/s100960050188