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J Med Microbiol 53 (2004), 991-997; DOI: 10.1099/jmm.0.05384-0
© 2004 Society for General Microbiology
ISSN 0022-2615

Macrorestriction analysis of Streptococcus agalactiae (group B Streptococcus) isolates from Malaysia

Kwai-Lin Thong1, Goh Yee Ling1, Leong Wing Kong2, Lim Chin Theam3 and Yun Fong Ngeow4

Institute of Biological Sciences, Faculty of Science1, Departments of OBGYN2, Paediatrics3 and Medical Microbiology4, Faculty of Medicine, University of Malaya, 50603, Kuala Lumpur, Malaysia

Correspondence Kwai-Lin Thong thongkl{at}um.edu.my

Received July 9, 2003
Accepted June 9, 2004

Streptococcus agalactiae or group B streptococci (GBS) often colonize the gastrointestinal and urogenital tracts of women, who may transmit these organisms to their offspring during the birth process. Using PFGE analysis, the genetic diversity of GBS was studied for strains isolated from pregnant women and their newborn infants in a teaching hospital. A total of 48 different PFGE profiles were obtained from 123 strains, with one profile (S1) appearing to be predominant among both groups studied. There was good overall correlation between the profiles obtained for strains from mother–infant pairs and for strains isolated from different body sites in the same individual. Occasional discrepancies seen in related body sites and among mother–infant pairs suggest concurrent carriage of different strains in the same individual as well as the possibility of an environmental source of organism for the neonate. The overall results demonstrated that many variants of GBS strains occur in Malaysia.

Abbreviations: GBS, group B streptococci; PFP, PFGE profile.






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