Investigation of brucellosis epidemics in human and animals in Baoshan, Yunnan

  Objective   To understand the characteristics of the brucellosis epidemics in human and animals in Baoshan prefecture of Yunnan province and provide scientific references for the prevention and control of brucellosis.

  Methods   Descriptive epidemiological methods were used to analyze the investigation and response data of the two public health emergencies caused by brucellosis in Baoshan.

  Results   Since 2017, two epidemics of brucellosis have been reported in Baoshan. In the first epidemic, a worker in a sika deer breeding farm showed fever with unknown reason and limb weakness, Brucella serological testing result was positive, and the antibody titer was 1∶400++. Brucella melitensis was detected by blood culture. Ten blood samples of sika deer were collected and tested by rose bengal plate agglutination test, the results showed that 2 samples were positive. The second epidemic was caused by infected beef cattle. In the response of the epidemic, 10 cattle attendants and 6 veterinarians were investigated. The blood samples of two persons were positive,there were 19 beef cattle with antibody positive.

  Conclusion   Two epidemics of brucellosis in Baoshan were effectively controlled through timely epidemiological investigation and managements. It is suggested to implement strict quarantine before the introduction of economic animals and strengthen the surveillance for brucellosis in staff and economic animals in breeding farms.