title: Change in susceptibility of group B streptococci to penicillin G from 1968 through 1975.
abstract: This report describes a study of 212 isolates of group B streptococci from sore throats over an 8-year period. A small but increasing percentage showed increased resistance to penicillin G when tested in an in vitro system.
mesh_terms: D008826:Microbial Sensitivity Tests; D010400:Penicillin G / Q000494:pharmacology*; D013291:Streptococcus / Q000187:drug effects*; D013997:Time Factors
chemical_list: D010400:Penicillin G