Measles Epidemiological Characteristics Of The Main City Of Chongqing, The Influencing Factors And Control Strategies

Objective: To explore epidemiological features and influencing factors, evaluate the quality of measles monitoring system, gain the knowledge degree of professional staffs and parents of children in Chongqing downtown over the past 10 years, and develop strategies and measures of measles control for Chongqing devaluating.Methods: We collected the datum of measles patients, measles inoculation rate, monitoring systems and controlling measures in Jingbei District, Shapingba District, Jiulongpo District and Dadukou District of Chongqing, and investigating the knowledge state of children's parents and medical members, analyzed these datum, and described epidemiological features and influencing factors.Results: From 1997 year to 2007 year, measles incidences were in the course of first advancing, then degrading and eventually advancing. The epidemic months were April, May and June. The higher age stages of onset were infancy no more than one year's old and adolescent age, babies who were younger than one yeare old occupied the ratio of 36.6%. It had no gender difference. The children who resided many cities were occupied 37.9% proportion of total patients. We classified the patients in occupation, and found that students, scattered children and kindergarten children occupied 90.25% proportion. By Logistic regression analizing, we found age, vaccination, Catarrhal rhinitis and Conjunctivitis are the factors affecting the incidence.By comparing between the general epidemic system with the measles monitor system from 1997 year to 2007 year, we found 25.33% patients of the general epidemic system were left out the measles monitor system. In the first onset day, there were only 50.45% reported.88.33% patients completed epidemiological investigation in 48 hours after reports by the general epidemic system. There were only 28.02% patients were taked biological specimens,and 79.2% specimens were timely conveyed.The awareness of children's parents about the symptoms of measles was 26.88%, about the control policies was 26.88%.Conclusions: Measles incidence had the change that was first increasing, then decreasing and finally increasing in ten years, and it has an increasing trend in future. Babies who are younger than one year old and youth are important crowd influencing control measles, especially, the students, scattered children and kindergarten children are the most important control objects to eliminate measles.It was important in the control policies that to consummate the monitoring system, to carry out preventive inoculation and to evolve strengthen inoculation at the right time. By the trainings of medical staff, propagandas of inhabitants, generalization of inoculation, building the cold chain quickly, the guarantee from governments to supply enough money to eliminate measles, we will have the ability to eliminate measles.