Epidemiological characteristics of measles in Jilin Province from 2013 to 2022 / 中国生物制品学杂志

ABSTRACT

@#Objective To analyze the epidemiological characteristics of measles in Jilin Province from 2013 to 2020.Methods Through the measles surveillance system of China Disease Prevention and Control Information System,a national health security information project,the measles incidence data of Jilin Province from 2013 to 2022 were collected,the measles incidence and incidence characteristics were analyzed by descriptive epidemiological method,while the virus was isolated and the genotype was identified at the same time.Results From 2013 to 2022,3 202 measles cases were reported in Jilin Province,and the reported incidence rates were 0. 57/100 000,9. 88/100 000,0. 71/100 000,0. 32/100 000,0. 12/100 000,0. 13/100 000,0. 13/100 000,0. 05/100 000,0. 05/100 000 and 0. 06/100 000,respectively.By age group,people aged 0 ～ 1,2 ～ 6,7 ～ 18,19 ～ 29,30 ～ 49 and over 50 years accounted for 42. 19%,10. 31%,6. 28%,14. 52%,24. 83% and 1. 87% of all the reported incidence cases,respectively,while among cases aged less than8 months,8 ～ 12 months,2 ～ 18 years and over 19 years,98. 49%,71. 34%,33. 33% and 39. 77% had no vaccination history,respectively. From 2013 to 2018,a total of 44 measles virus strains were obtained in the measles laboratory of Jilin Province,except for one vaccine strain A genotype,the rest were all H1a genotype,and no measles virus strain was obtained since 2019.Conclusion From 2013 to 2022,the reported incidence of measles in Jilin Province showed a downward trend year by year,while there is still a need to maintain the coverage of two doses of vaccination of measles containing vaccine. At the same time,adult measles vaccination should be strengthened,and the sensitivity of surveillance system should be improved to prevent measles outbreaks.