Objective   To investigate the epidemiological features of measles in Chongqing city in order to provide evidence for prevention and control measles.    Methods   The measles incidence and vaccination of Chongqing from 1997 to 2007 and the data of measles patients in Jiangbei District

Shapingba District

Jiulongpo District and Dadukou District of Chongqing during 2004 to 2007 were collected

and a comprehensive analysis was carried out.    Results   Measles incidence was in a course of first advancing

then degrading and eventually advancing in the 10 years of 1997 to 2007. The epidemic months in those 4 districts were April

May and June. The peak onset age was younger than 7 years old (62.2%)

with infants under 1 year old accounting for 36.6%. There was no gender difference found. The transient people covered 37.9% proportion of total patients. After the patients’ occupation was classified

students

scattered children and kindergarten children occupied 90.25% of proportion.     Conclusion   Measles incidence is first advancing

then degrading and eventually advancing in these 10 years. The measles surveillance system should be strengthened and perfected

and the work of vaccination should be enhanced

especially for those floating children in order to achieve the goal of keeping measles under control.