Serotyping of beta hemolytic streptococci and their distribution in clinical specimens

In the present study 300 beta hemolytic streptococci isolated from various clinical specimens have been serogrouped and their distribution in body sites have been discussed. Beta hemolytic streptococci have been recovered from 10.6% of throat cultures, 8.7% of urine cultures, 7% of other cultures. Group A streptococci have been mostly isolated from throat cultures with a percentage of 71.9 whereas the mostly isolated serogroup from urinary specimens was Group D (73.7%). Group B streptococci have been isolated in 21.1% and 22.7% ratios from urinary tract and other specimens, respectively.