[On the incidence of meningococcus carrier state].
D002353:Carrier State / Q000453:epidemiology* / Q000209:etiology; D002648:Child; D002675:Child, Preschool; D004165:Diphtheria / Q000209:etiology; D006801:Humans; D007223:Infant; D008589:Meningococcal Infections / Q000453:epidemiology*; D012621:Seasons
O rasprostranennosti nositel'stva meningokokka.