Objective: To understand the epidemiological characteristics of measles in Jiulongpo district of Chongqing from 1997 to 2011 in an aim to provide references for formulating control measures.Methods:The epidemic data of measles from 1997 to 2011 and the monitoring data of measles from 2005 to 2011 in Jiulongpo district of Chongqing were collected and analyzed with descriptive epidemiology.Results:The incidence of measles from 1997 to 2011 was ranged between 0.36/100 000 and 20.56/100 000 with an average incidence of 3.98/100 000.The months between April and July were the susceptible seasons for measles.Measles was mainly occurred under the age of 15

accounting for 76.99%.The monitoring data revealed that the age composition ratios within 8 months

from 8 months to 1 years old

from 1 years old to 2 year old and over 20 year old were 32.73%

21.39%

5.15% and 17.01% respectively.The cases who had no immunization history or whose immunization history was vague were accounted for 91.24%.Conclusion:Those within 8 months and those with older age were more susceptible to measles.Health education and the management work for migrant children should be enhanced

the vaccination work for femme in child bearing age should be developed

the vaccination work for those under the age of 15 and supplementary immunization activities for those over the age of 15 should be promoted apart from the routine immunization work in order to control and eliminate measles.