%0 Journal Article %A Lawal, S. F. %A Dosunmu-Ogunbi, O. %T A new scheme for serotyping group-G streptococci %D 1986 %J Journal of Medical Microbiology, %V 21 %N 3 %P 275-277 %@ 1473-5644 %R https://doi.org/10.1099/00222615-21-3-275 %I Microbiology Society, %X SUMMARY Ten antisera, prepared against nine selected strains of group-G streptococci and a strain of group-A streptococci of M-type 12, were used to serotype 102 isolates of group-G streptococci by means of precipitation reactions between the sera and hot-acid extracts of the streptococci.Fifty-six (54.9%) of the streptococci could be typed; eight serotypes were identified, of which type VIII was the most common (18.6%). The M12 and the R28 antigens, previously recorded in group-G streptococci, were not detected. The type antigens were trypsin sensitive and resembled the M antigens of group-A streptococci. %U https://www.microbiologyresearch.org/content/journal/jmm/10.1099/00222615-21-3-275