Presents data on the incidence of infections controllable by vaccine p
revention, hepatitides, arbovirus infections, and hemorrhagic fevers,
as well as on the share of virus infections in nosocomial morbidity. D
efines the tasks of research and practical institutions liquidation of
poliomyelitis and decrease of the incidence of measles. Formulates th
e problems in epidemiology, prevention, and diagnosis of virus infecti
ons to be solved by the year 2000.