Epidemiology of Measles in Chengdu,2004-2009

Objective To understand the epidemiological characteristics of measles in Chengdu and provide scientific evidence for the elimination of measles.Methods Descriptive epidemiological analysis was conducted on the incidence data of measles in Chengdu from 2004 to 2009.Results A total of 2 200 confirmed measles cases were reported during this period.The incidence of measles declined obviously after the conduction of measles supplementary immunization activity in Sichuan in 2008.The incidence peak of measles was during March to July,and the cases were mainly infants/ young children,preschool aged children and students of low grade.The proportions of the cases in children aged ≤ 1 year and adults increased by years.The cases in floating population accounted for 58.45% of the total.Conclusion After immunization was carried out in whole province in 2008,the incidence of measles decreased significantly.Timely measles vaccination and improving the quality of measles surveillance are critical to control and eliminate measles.