[Effectiveness of revaccination against measles].

The authors studied the efficacy of measles revaccination in children in whose serum no specific antihemagglutinins were revealed in titration with 1 GAE antigen (the first group) and having no specific antibodies in titration with 4 GAE antigen (the second group). Investigations demonstrated that children in whose blood serum no measles antibodies were revealed in the presence of 1 GAE antigen were subject of vaccination. Repeated vaccination used at present in persons who produced minimal antibody concentrations in response to vaccination is not recommended.

[Immunoepidemiological observations on the duration of post-vaccinal immunity in children vaccinated against measles].

In the course of 4 years the authors carried out an immunological and epidemiological observation over 4719 children which attended creches, kindergartens and schools, and were vaccinated with live measles vaccines L-16 and ASC in 1967--1972. A stable persistence of immunity was revealed in the majority of children vaccinated against measles which responded to the vaccination by the formation of humoral antibodies. Among these groups an insignificant number of persons with the appearance of measles sensitivity was noted during the observation period.

[An epidemiologic and immunologic study of measles under conditions of massive immunization against that infection].

Massive measles immunization in Riga led to a marked reduction of measles incidence and to a change of the principal regularities of the epidemic process in this infection. Among those who contracted the disease there was an increase in the percentage of schoolchildren; affection with measles of children attending creches and kindergartens and the intensity of the spread of the infection in them diminished. Selective examination of the immunological efficacy of the living measles vaccine prepared of the (see article) and applied in 1967--1972 demonstrated the presence of specific stimulation of the antibody formation in about 90% of the persons vaccinated.