Analysis of epidemiological characteristics of human anthrax in Sichuan Province from 2018 to 2023
Objective To understand the epidemiological characteristics and reported cases of human anthrax in Sichuan province,and to provide scientific basis for the effective prevention and control of the disease.Methods Anthrax cases and related public health emergencies during Jan.1,2018 to Dec.31,2023 were collected from Infectious Disease Reporting Information Management System in China Disease Prevention and Control Information System,and the epidemic situation,epidemic characteristics,the manifestations of the epidemic and reporting organizations were analyzed by descriptive epidemiological methods.Results A total of 358 cases of anthrax with 2 deaths were reported from 2016 to 2023 in Sichuan province.The average annual incidence was 0.084/105.The skin anthrax accounted for 98.6%.The ratio of male to female was 2.5∶1.0.The age of most cases were from 20 to 55 years old(79.3%)and herdsmen(68.7%).The peak was in August.The cumulative incidence was 3.7911/105 in Ganzi,1.585/105 in Aba and 0.038/105 in Liangshan prefecture,which affected 61.1%(11.18),46.2%(6/13)and 17.6%(3/17)districts and counties,respectively.Shiqu county had the highest incidence(19.414 per 105).There incidence was 81.3%in pastoral area.About 68.7%cases and 13.4%cases were reported by county and township organization,respectively.Sporadic cases accounted for 98.2%.There were 6 clusters,with a median of 3 cases.The source of infection was related to the dead cattle.Conclusions The incidence of anthrax in Sichuan province is regional,seasonal and occupational.The main characteristics of the disease were sporadic,with cluster outbreaks caused by dealing with sick and dead cattle together.We should carry out health education for herdsmen and improving the diagnostic level of grassroots institutions.
human anthraxepidemiological characteristicmanifestations of epidemiccase report