Further Studies of Some “Nontypable” Group A Streptococci 1


Thirty-two strains of group A hemolytic streptococci which could not be M typed with the available typing sera in Nashville, Tenn., were reinvestigated at the Streptococcus Reference Laboratory in Colindale, England, in order to estimate the efficacy of other antisera not available in Nashville and newer techniques (the opacity factor inhibition test) of… (More)


3 Figures and Tables

Slides referencing similar topics