[Anti-measles antibodies in the first 2 years of life].

In order to achieve a better understanding of the epidemiology of measles in Spain to foster vaccination policy in our country, we have conducted a serological survey of measles antibodies in children between birth and two years of life in the urban population of Madrid. Authors have established the rate at which maternal antibodies are lost in these children below 15 months of life. The results indicate that, in general maternal antibodies have already disappeared at 9 months. Vaccination can thus be indicated around this age.