title: [Poliomyelitis over many years of vaccinal prophylaxis. I. The epidemiological characteristics of poliomyelitis].
abstract: Vaccinal prophylaxis against poliomyelitis , carried out regularly in the USSR for many years, has erected a reliable barrier to the epidemic manifestation of this disease in large areas of the USSR over the period of almost 25 years (the term of observation) and introduced new features into its epidemiology: the sluggish course of the epidemic process, a decrease in the relative morbidity rate in cities, a lower morbidity rate among children attending preschool institutions, the absence of the family foci of poliomyelitis, more favorable outcome oft the disease.
mesh_terms: D000367:Age Factors; D002675:Child, Preschool; D004196:Disease Outbreaks / Q000453:epidemiology / Q000517:prevention & control; D004197:Disease Reservoirs; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D011051:Poliomyelitis / Q000453:epidemiology / Q000517:prevention & control*; D011055:Poliovirus Vaccine, Oral / Q000008:administration & dosage*; D012621:Seasons; D012737:Sex Factors; D013997:Time Factors; D014586:USSR
chemical_list: D011055:Poliovirus Vaccine, Oral
vernacular_title: Poliomielit v usloviiak ego mnogoletneĭ vaktsinoprofilaktiki. Soobshchenie I. Nekotorye épidemiologicheskie osobennosti poliomielita.