Dynamics of population immunity to influenza A and B viruses resulting from the introduction of a comprehensive influenza control system in a city]

The time course of population immunity to influenza viruses A and B in different social and age groups among the inhabitants of Severodvinsk before and after the introduction of the complex system of influenza control has been studied. The influence of mass vaccinal prophylaxis and natural influenza morbidity on population immunity among the inhabitants of the city is shown.