Analysis on the result of detection of measles antibodies in 46 pairs of mother and infan

Objective To investigate the maternal level of measle antibody and few month old incidence of measles cases in Jiangbei district, Ningbo, to provide support for the research into immunization strategy of few month old infant measles and control of such epidemic.Methods 102 pregnant women with gestational age of 36 weeks from the floating and permanent resident in Jiangbei district, with 46 matching infants. Enzyme - linked immu- nosuppressant assay was used to test measles IgG antibody. Measles incidence data in 2008 in Jiangbei district was collectted and analyzed. Results Infection of measles oceured among infants as well as adults in Jiangbei district, with infection rate of 28% and 47 % respectively, especially in infants of 6 -8 months, accountted for 82.5 % . Infant measles antibody level was closely related to that of the mothers; with a correlation coefficient of 0. 752. 102 cases of measles IgG antibody - positive pregnant women was 90.9%; protective antibody - positive rate was 46.5%; GM- RT was 725.6. 46 pairs of infant measles antibody - positive rate was 91.3% , GMRT was 901.3, of which 1, 6, 8 -month- old baby- positive rates were 91.3% , 6.3% and 0% separately. Conclusion In recent years, the major affected population of measles in Jiangbei district is oriented from few month old babies especially the low level of antibody in 6 - 8 month infants. Early implementation of measles vaccine to raise the antibody levels, and mean- while, measles vaccination of women of childbearing age to raise the level of maternal antibodies, would reduce the incidence of measles in few month old infants.