Epidemic Situation Of Measles In Ruzhou City During2007-2012

ObjectivesCollect measles cases in Ruzhou city from2007to2012and epidemic data of measles vaccine mass immunization, to analyze epidemiological characteristics of measles in Ruzhou and the effects of the measles vaccine mass immunization, find high-risk groups, high incidence area and high-occurrence seasons of measles timely, scientific basis was provided for control measles epidemic and measles elimination of Ruzhou。MethodsCollect Case investigation and investigation report of measles cases of Ruzhou city from January1,2007to December31,2012, To analyze high-risk groups, high incidence area, high-ccurrence seasons of measles, measles immunization history, serologic results, the incidence of immunity before and after reinforcement by descriptive epidemiology. Processing and analysis of statistical data through the Excel2003.ResultsRuzhou city in2007-2012years501measles cases occurred, the average annual incidence rate of8.36/105, Incidence decreased year by year; The high incidence of measles in Babies of not until eight months to three years old, there is little age trend significantly. Composition ratio of that age under eight months does not meet the measles vaccine immunization initial age and over15years old age group increased significantly, Constituent ratio gradually decreased in1-15years old children; The measles incidence showed obvious seasonal, the peak season in winter and spring, The measles incidence began to increase from February, July declined, the peak months from Marth to May; Measles has obvious characteristics of regional distribution, Wangzhai Village, Zhonglou Community and Jiliao Village average annual incidence rate were17.93/105,17.63/105,16.08/105; Measles is the largest number of no measles vaccination and immunization of measles vaccine history is unknown, and only a few cases who had measles vaccine history. The present measles control strategies in Ruzhou city is:Child immunization information system and start going to a nursery school, school entry immunization work and constantly improve the level of immunization of measles vaccine routine immunization coverage rate; improve timeliness and sensitivity of Measles surveillance information system,detect suspected measles outbreak, to perform epidemiological investigation, adopt preventive and control measures; Hospital infection has become one of the main factors of measles now.ConclusionsGreat changes have taken place in the epidemiological characteristics of measles in Ruzhou city2007-2012, season changed from the traditional winter and spring season to spring and summer, The annual incidence of every season; The high-risk population is younger infants and adult, showing a "double shift" trend; In2010progressives the measles vaccine mass immunization, measles cases no occurred for two years, measles vaccine mass immunization is an effective measure to reduce the incidence of measles, For nearly six years of epidemiological investigation of measles cases, found increased susceptible population such as contact Measles patients, hospital infection, measles vaccine coverage and timely rate is low people overall antibody levels decline, newborn babies born, Hospital infection has become one of the main factors of measles now.