학술논문
High-Virulence Clone of Group B Streptococci Unable to Grow at High Temperatures Is Present in Serotypes Other Than Type III
Document Type
Academic Journal
Author
Source
Current Microbiology. Jan, 2007, Vol. 54 Issue 1, p42, 6 p.
Subject
Language
English
ISSN
0343-8651
Abstract
Highly virulent clonotypes of serotype III seem to cause much of the perinatal morbidity and mortality attributed to Streptococcus agalactiae (group B streptococci, GBS), One of these clonal types, designated the "high-virulence clone" (HVC), was identified by its inability to grow at 40degC in a chemically defined medium. In the present study, this inability to grow at high temperatures was used as a marker to identify HVC in a sample of 286 Mexican GBS isolates. Forty-three isolates (15%) were identified as belonging to this clone: 15 were invasive isolates, 33 were serotype III (77%), and 10 were of serotypes other than type III (23%). These results demonstrate that HVC is more prevalent in Mexico than previously reported and that this clone is not restricted to serotype III isolates.