Study on epidemiology and control measures of measles in Xuanwei city,1952～2004

Objective To study the epidemiological characteristics of measles in Xuanwei city in order to forecast its epidemic trend,establish interventions and reduce its incidence rate.Methods The epidemic situation of measles during 1952～2004 were analyzed.Results The mortality of measles and the incidence rate of measles were remarkably declined.After implementing EPI,the incidence rate decreased from 2 254.91/100 000 to 0.09/100 000,and the mortality reduced from 5.24/100 000 in 1957 to 0 in 1987.The annual average incidence of measles reduced by 97.56%.The vaccination rate and the incidence of measles was negative correlated((r=-0.91),(P0.01)).In the cases of measles from 1990 to 2004,(74.08%) had no immunization.Before and after EPI work the spread of measles decreased and the seasonly regular measles incidence greatly declined.The measles neutralization antibody positive rate was 88.8%～100%,with the surveys from 1978 to 2004.Conclusions EPI work had remarkable effect on control measles.Strengthening surveillance and maintaining high level of regular immunization was key to control measles.