Investigation on the Measles antibody level in healthy population of Haikou from 2008-2009

OBJECTIVE To understand the measles antibody levels in healthy people of haikou,and provide scientific basis for the elimination of measles in the future.METHODS A stratified cluster sampling method was taken to collect population with high,medium and low vaccination rates in 2008 and 2009 as well as eight age groups.1 918 healthy people serum were collected by using ELSIA determination measles IgG antibody titers.RESULTS Measles antibody positive rate was 93.64%,and GMT was 1︰885.65.GMT of 1 265 persons showed ≥ 1︰800,and accounted for 65.95%.The GMT of different areas showed significant difference.The antibody positive rate and GMT of age group had significant difference.CONCLUSION The measles antibody of haikou city had a high level,essential to develop an immune barrier of measles.This has played a positive role in control the incidence of measles.However,there are still weak areas and populations of immunity levels.For raising the level of population immunity antibodies and improving routine immunization coverage in the future,we should be directed to Areas with weak immune perform immunization and leak replant.