[Effect of acute respiratory viral infection on the formation of postvaccinal measles immunity].

The formation of postvaccinal measles immunity under the conditions of the uncomplicated development of the postvaccinal process and in cases of concomitant acute respiratory viral infection (ARVI) was studied. The peculiarities of immunological reaction to ARVI in the postvaccinal period in children were characterized by disturbances in measles antibody synthesis and changes in the ratio and content of immunoglobulins. The negative influence of ARVI especially in cases of its appearance at an early period after vaccination, was manifested in decreased antibody production and in the gradual loss of immunity to measles in some children as they grew older.