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. 1990 Jul;28(7):1676-7.
doi: 10.1128/jcm.28.7.1676-1677.1990.

Identification of a high-virulence clone of serotype III Streptococcus agalactiae by growth characteristics at 40 degrees C

S J Mattingly  1 , J J Maurer, E K Eskew, F Cox
Affiliations

Identification of a high-virulence clone of serotype III Streptococcus agalactiae by growth characteristics at 40 degrees C

S J Mattingly et al. J Clin Microbiol. 1990 Jul.

Abstract

A high-virulence clone of serotype III Streptococcus agalactiae causing invasive neonatal disease was previously identified by multilocus enzyme electrophoresis. A simple procedure involving growth at 40 degrees C distinguished all isolates classified in this high-virulence clone from other serotype III isolates, which are more frequently associated with asymptomatically colonized infants, as well as the other serotypes of group B streptococci. The high-virulence clone failed to grow at 40 degrees C in FMC, a chemically defined medium, in contrast to the other organisms, which grew readily.

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