| isolation and characterization of group b streptococci from human and bovine sources within and around nairobi. | group b streptococci (gbs) were isolated from bovine milk and from vaginas and throats of antenatal and postnatal women using tkt and rapid gbs media. sixty-three of 529 (12%) bovine bulk milk samples, 9 of 48 (19%) vaginal and 3 of 48 (6%) throat samples were positive. both bovine and human beta haemolytic isolates were characterized biochemically and serologically. pigment production was a characteristic of both human and bovine beta haemolytic isolates. the majority (88%) of human isolates fe ... | 1997 | 9207731 |