title: [Occurrence of streptococcal infections and the prevalence of type A groups of hemolytic streptococci in an urban health district].
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D003604:Czechoslovakia; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D013290:Streptococcal Infections / Q000453:epidemiology* / Q000382:microbiology; D013291:Streptococcus / Q000302:isolation & purification; D014505:Urban Population
vernacular_title: Výskyt streptokokových nákaz a prevalence skupin a typů (skupiny a) hemolytických streptokoků v mĕstském zdravotnickém obvodĕ.