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Comparative Study
. 1992 Apr;30(4):1019-21.
doi: 10.1128/jcm.30.4.1019-1021.1992.

New Granada Medium for detection and identification of group B streptococci

M de la Rosa  1 , M Perez, C Carazo, L Pareja, J I Peis, F Hernandez
Affiliations
Comparative Study

New Granada Medium for detection and identification of group B streptococci

M de la Rosa et al. J Clin Microbiol. 1992 Apr.

Abstract

A methotrexate-containing medium for the detection of beta-hemolytic group B streptococci from clinical specimens on the basis of detection of pigment is described. The medium contained peptone, starch, serum, MgSO4, glucose, pyruvate, methotrexate (as pigment enhancer), phosphate-morpholine-propanesulfonic acid buffer, and selective agents. The recovery of beta-hemolytic group B streptococci was comparable to that obtained with selective broth.

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