Brucellosis from 2006 to 2010: an analysis of surveillance results at the national surveillance spots / 中国地方病学杂志

ABSTRACT

ObjectiveTo analyze the surveillance results at the national surveillance spots of brucellosis from 2006 to 2010,to know the epidemic status of national brucellosis,and to provide scientific evidences for evaluating of surveillance quality and formulating of surveillance strategies and measures.Methods The brucellosis surveillance data collected from the Surveillance Reports of Major Infectious Diseases and Vector-Biological Monitoring Report in China from 2006 to 2010,and the National Diseases Surveillance Information Management System were classified and analyzed using two stage clustering statistical analysis.Results According to national routine surveillance,the incidence of brucellosis increased from 1.55 per 100 000 in 2006 to 2.62 per 100 000 in 2010.Reported brucellosis cases were mainly in Inner Mongolia,Shanxi,Heilongjiang and other regions,and reported time was from March to August,which accounting for 79.87％(114 265/143 064).The brucellosis cases were mainly youth,male,farmers and herdsman.In the national surveillance spots of the brucellosis,217 648 cases received epidemic survey,of which 61 905 cases received serological test,the positive rate was 19.66％(12 169/61 905),and 10 318 new cases were found; the highest positive rate of serological test was 41.19％(2757/6694) which was found in Zhalantun of Inner Mongolia; the detection rate of pathogen culture was 2.49％(29/1165); the positive rates of serological test in cattle and sheep were 1.07％(2355/219 352) and 0.93％ (2766/296 176),respectively.The surveillance spots were classified into four grades according to cluster analysis.Conclusions The epidemic continues to rise in human surveillance spots of brucellosis.Although national surveillance spots play an important role in the surveillance of brucellosis,the quality and quantity of surveillance work of national brucellosis surveillance spots should be improved,different management measures should be taken in different surveillance spots according to classified results of the cluster analysis.This study provides some basis to improve the utilization of health resources and the level of Brucella disease prevention and control work.