The epidemiological problems of viral non-A, non-B hepatitis with a fecal-oral mechanism of infection transmission

The results of the study of the epidemiological regularities of viral hepatitis non-A, non-B with the fecal-oral mechanism of the transfer of infection in one of the regions of the Turkmenian SSR are presented. These results have been confirmed by serological and virological laboratory methods. The territories, groups of the population (age groups) and the time of the maximum epidemic risk of infection have been determined. The main (primary) role of the water route (polluted ground water) in the spread of this infection has been proved.     

Measles: prospects of vaccine prophylaxis and decrease of morbidity in Moscow

The results of the prolonged epidemiological surveillance on measles in Moscow are presented. The detailed analysis of the influence of immunization on the level of measles morbidity has been made. Changes in the age structure of measles patients with an essential increase in the proportion of adolescents and adults due to mass vaccination of the child population are shown. High risk groups have been determined according to the data of serological screening and epidemiological surveillance. The prospects of the vaccinal prophylaxis of measles under present conditions, as the basic intervention for achieving sporadic level of morbidity in this infection and further eradication are evaluated.