[Beta-hemolytic streptococcus carriers in a rural population].
D000293:Adolescent; D000328:Adult; D002353:Carrier State / Q000453:epidemiology*; D002648:Child; D002675:Child, Preschool; D003604:Czechoslovakia; D006801:Humans; D008875:Middle Aged; D012423:Rural Health; D013290:Streptococcal Infections / Q000453:epidemiology*
Nosicstvo beta hemolytických streptokokov vo vidieckej populácii.