Results of a study of acute paretic diseases in children according to material from a epidemiologic examination of the foci]

The authors carried out epidemiological examination of 160 foci of acute paretic diseases (APD) with serovirological examination of 181 patients and 413 contacts. Polioviruses were found to be etiologically responsible for the disease, as indicated by the results of serological examination in 37% of the patients, and by isolation of polioviruses (of the I and III types) in 4% of cases. As revealed, the vaccination scheme (periods and number of vaccinations) was not properly followed in 81.7% of those who contracted the disease. There were some differences in the characteristics of the foci in the child collective bodies and in families. Only individual cases of the disease were as a rule revealed in the familial foci, whereas in 9.6% of creches and kindergartens there were from 2 to 4 cases in each focus.