title: Prevalence, group pattern, T pattern and seasonal variation of beta haemolytic streptococci in and around Shimla.
abstract: One hundred and seventy two strains of beta haemolytic streptococci were isolated from various clinical specimens over a period of one year. Group A was isolated in 69.70% and group C in 16.80 percent. Majority of the strains were isolated during winter season and only 21.00 percent in summer 93.30 percent strains were bacitracin sensitive and all were sensitive to penicillin. The most common T pattern among group A was found to be 5/11/12/27/44 followed by 3/13/B 3264.
authors.affiliation: Department of Microbiology, Indira Gandhi Medical College, Himachal, Pradesh.
authors.forename: A
authors.initials: A
authors.lastname: Verma
authors.forename: V
authors.initials: V
authors.lastname: Sharma
authors.forename: T
authors.initials: T
authors.lastname: Singh
authors.forename: A
authors.initials: A
authors.lastname: Goyal
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D004352:Drug Resistance, Microbial; D006801:Humans; D007194:India / Q000453:epidemiology; D007223:Infant; D007231:Infant, Newborn; D008826:Microbial Sensitivity Tests; D015995:Prevalence; D012621:Seasons; D013290:Streptococcal Infections / Q000453:epidemiology / Q000382:microbiology*; D013291:Streptococcus / Q000187:drug effects* / Q000302:isolation & purification