The distribution of group B streptococcal serotypes among isolates obtained in three Australian cities.
One hundred and sixty three isolates of group B streptococci from human carrier and disease conditions in Brisbane, Melbourne and Adelaide were serotyped by the Lancefield capillary precipitin test, coagglutination and microimmunodiffusion. Serotypes I and III were most common; serotype III appeared to occur uniformly but serotype Ia varied in distribution. No significant difference was found in serotype distribution among isolates from pregnant and non-pregnant women, or rectal and vaginal swabs; however, type Ia was found to occur significantly more often as an infectious agent than as a commensal (P less than 0.01).
D001315:Australia; D005260:Female; D006801:Humans; D011247:Pregnancy; D012703:Serotyping; D013290:Streptococcal Infections / Q000382:microbiology; D013297:Streptococcus pyogenes / Q000145:classification* / Q000302:isolation & purification