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. 1976 Jun;3(6):582-5.
doi: 10.1128/jcm.3.6.582-585.1976.

Combined serotyping and biotyping of Serratia marcescens

S J Rubin, S Brock, M Chamberland, R W Lyons

Combined serotyping and biotyping of Serratia marcescens

S J Rubin et al. J Clin Microbiol. 1976 Jun.

Abstract

The API (Analytab Products, Inc., New York, N.Y.) biotypes of 117 clinical isolates of Serratia marcescens were determined and fell into 13 different patterns. The O and H antigens were determined by tube agglutination, and 27 serotypes were identified. The biotype and serotype appeared to vary indepently. Serotyping and biotyping combined divided these isolates into 56 different types. There was a problem interpreting the end points for inositol fermentation and urease production, which could affect reproducibility of API biotypes. Biotyping is a simple way of screening for possible nosocomial outbreaks of S. marcescens.

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