Group G streptococci: a review of the literature.

A review of the occurrence, general characteristics, and identification procedures for Group G streptococci is presented. Group G streptococci cause the same types of infection and have similar morphological characteristics as the other beta-hemolytic streptococci. If serological methods are used for identification, cross reactions may be seen between Group G and B streptococci, as they share a common antigenic determinant. Group G may also be misidentified as Group A streptococci with biochemical testing because at least 7% of Group G are sensitive to bacitracin. are sensitive to bacitracin. are sensitive to bacitracin.