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Human and bovine group B streptococci: two distinct populations
Author(s) -
Finch Lesley A.,
Martin Diana R.
Publication year - 1984
Publication title -
journal of applied bacteriology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.889
H-Index - 156
eISSN - 1365-2672
pISSN - 0021-8847
DOI - 10.1111/j.1365-2672.1984.tb01391.x
Subject(s) - salicin , microbiology and biotechnology , streptococcus agalactiae , serotype , bacitracin , bacteriocin , biology , group b , lactose , group a , serology , streptococcus , bacteria , antibody , biochemistry , immunology , antimicrobial , medicine , antibiotics , genetics
Group B streptococci ( Streptococcus agalactiae ) from humans and animals were compared for cultural, biochemical, serological and bacteriocin sensitivity properties. Each isolate possessed the group B carbohydrate antigen, hydrolysed hippurate, and was CAMP test positive. Most human isolates were characterized as bacitracin resistant, pigment producing, haemolytic, and salicin but not lactose utilizing. In contrast bovine isolates were usually bacitracin sensitive, non‐pigment producing, non‐haemolytic, salicin and lactose utilizing. Isolates from other animals behaved similarly to those from humans. Whereas human isolates belonged to a variety of serotypes and were uniformly sensitive to bacteriocins, bovine isolates showed varying sensitivity to bacteriocins and most belonged to serotype II or were non‐typable. We believe these results support the belief that Strep. agalactiae from humans and cattle are separate populations sharing the same group B carbohydrate antigen.