Presumptive identification & antibiotic susceptibility of group B Streptococci.
Three presumptive identification tests were conducted on 60 strains of beta haemolytic group B streptococci (GBS) & evaluated for their sensitivity as compared to the standard serological grouping. The GBS were further subjected to serotyping and antibiotic sensitivity testing. Hippurate was hydrolysed by 96.6%, the CAMP test was positive in 83.3% & pigment was produced by 95%. The commonest serotype was la (33.3%) followed by lb (30%). Hundred percent strains were sensitive to Penicillin, Ampicillin, Erythromycin & Cephlexin. 76.7% showed MIC of 50 ug/ml or more for Tetracycline & 66.7% were inhibited by 3.2 ug/ml or less of Gentamicin.
Department of Microbiology, Medical College, Amritsar, Pb.
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S
Arora
N
N
Jindal
G
G
Walia
V L
VL
Gulati
D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D006801:Humans; D012703:Serotyping; D013292:Streptococcus agalactiae / Q000187:drug effects* / Q000302:isolation & purification
D000900:Anti-Bacterial Agents