Performance of human brucellosis control in Xilingol league, Inner Mongolia, 2010–2018

ObjectivesTo evaluate the performance of human brucellosis prevention and control in Xilingol league of Inner Mongolia from 2010 to 2018 and provide evidence for the local brucellosis prevention and control in the future.

MethodsThe incidence data of human brucellosis in Xilingol from 2010 to 2018 were collected to analyze the incidence level. The infection status and morbidity of brucellosis in population at high risk were evaluated by using blood test positive rate and brucellosis detection rate, the effects of occupational training and health education were evaluated respectively by using the professional training rate in medical staff and the awareness rate of brucellosis related knowledge in population at high risk, and the effects of patient treatment and management were evaluated by using standardized treatment rate and cure rate.

ResultsDuring 2010–2018, a total of 198 915 blood samples were tested in population at high risk, in which 8 434 were positive (4.24%), and 2 319 new brucellosis cases were detected (1.17%). There were significant differences in annual proportion of new cases detected in active investigation in cases reported through network (χ²＝574.878, P＜0.001). The positive rate, case detection rate of active investigation and the incidence rate reported through network in population at high risk showed decline trends (χ²＝1 520.332, 2 654.121, and 4 665.313, P＜0.001). The awareness rate of brucellosis in population at high risk increased from 69.04% to 90.83%. The annual qualified rates of medical staff engaged in brucellosis prevention and control in professional training were all higher than 98%. During 2010–2013, the cure rate of patients was low, the lowest was 52.78%, and the rate of follow up loss was higher than 30%. During 2014–2018, the cure rate was over 75%, and the rate of follow up loss dropped to about 10%.

ConclusionThe prevention and control of brucellosis has made achievement in Xilingol, however, it remains challengeable. It is still necessary to strengthen the prevention and control of brucellosis by fully implementation of all the measures.