[Epidemiological survey of vaccination]

This paper presents the results obtained in an epidemiological survey conducted at Unidad de Pediatría del Hospital General de México, S.S.A., in 1,009 patients, randomly selected. The routine immunization schedule, followed in Mexico during the last few years was investigated. The results are presented for every one of the vaccines, according with the age periods. Considering the group as a whole, the results are significantly low, as far as the recommended standards pretend. It is concluded that it is necessary to strengthen the vaccination program in this country, in order to avoid the possibilities of new breaks of epidemics related with this marked lack of immunization in the community.