Risk assessment indicators of measles epidemic in Wenzhou and the application

Abstract

Objective To determine the transmission risk level in each district of Wenzhou in 2015 by establishing applicable assessment index, and provide evidence for the local prevention and control measures of transmission. Methods The first grade indicators of fundamental immunity levels , measles case surveillance and prone to were assessed by assignment method. Each first grade indicator included 5 second grade indicators. The second grade indicator scores were added up to get the first grade indicator score. The total score was set at 100.00, and districts of which scores above 50.00 were identified as high risk areas. Results The weakest basic immune in Wenzhou was Ouhai district (score 25.50) and Yueqing city (score 23.50) . The monitoring quality of case was not high in Economic and Technological Development Zone (score 19.00) and Yueqing city (score 17.00) . The epidemic was easy to spread in Economic and Technological Development Zone (score 33.00) and Longwan district (score 30.00) . The highest risk of outbreak was in Economic and Technological Development Zone (score 69.50) , followed by Longwan district (score 63.50) , Lucheng district (score 56.50) , Ouhai district (score 56.50) and Yueqing city (score 52.50) . Conclusions The epidemic risk assessment indicator can reflect the epidemic risk in Wenzhou. The epidemic in Wenzhou can be controlled generally, but has weak links in some counties. The supervision should be strengthened, and the scope of emergency vaccination targets should be expanded for the districts in low quality such as the Economic and Technological Development Zone and Lucheng district. The coverage rates and timeliness rates of vaccination should be increased in low basic immunity level district, such as Longwan district and Yueqing city. Key words: Measles; Epidemic; Risk assessment; Indicators