Abstract：Objective To analyze the epidemic characteristics of mumps in Pudong New Area of Shanghai Municipality from 2013 to 2022, and to provide evidence for developing mumps control and prevention strategies. Methods The incidence data of mumps during 2013-2022 were obtained from the China Information System for Disease Prevention and Control. The descriptive epidemiological method was used to analyze the data. The seasonality and peak incidence of mumps were analyzed by using seasonal index method and circular distribution method. Results A total of 6,536 cases of mumps were reported in Pudong New Area of Shanghai Municipality during 2013-2022, the average annual incidence rate was 12.07/100,000, and the incidence rates showed a decreasing trend year by year. Analyses based on seasonal index method and circular distribution method revealed that the peak period of mumps incidence was from the end of April to the beginning of December each year. The majority of the cases were males (accounting for 61.00%), and the incidence rate of mumps was higher in males than in females (14.21/100,000 vs. 9.76/100,000, χ2=222.395, P<0.001). The age distribution of the cases was concentrated at the age of < 10 years (85.68%), and the incidence rate of the group aged 5 years was the highest (257.90/100,000). Preschool children (44.37%), students (37.55%) and scattered children (13.79%) were the main incidence groups. As for the regional distribution, the top three districts with total cases were Beicai Town (n=520, 7.96%), Sanlin Town (n=505, 7.73%) and Chuansha New Town (n=442, 6.76%). The vaccination rates of measles, mumps and rubella combined attenuated live vaccine (MMR) in eligible children in Pudong New Area from 2013 to 2022 were all above 99.00%. Conclusion The epidemics of mumps in Pudong New Area during 2013-2022 showed a downward trend. Preschool children, students and scattered children are key populations for mumps prevention and control. It is still necessary to strengthen the verification of vaccination certificate and the work regarding MMR vaccination and re-vaccination.
2024, Vol. 31 
