Field Epidemiological Investigation
Prevalence and serological analysis of brucellosis among high-risk occupation in Xinjiang Production and Construction Corps from 2013 to 2017
Tao Hu, Fei Han, Yongnian Zhao, Zheng Gong, Fanka Li
Published 2019-03-20
Cite as Chin J Endemiol, 2019, 38(3): 231-234. DOI: 10.3760/cma.j.issn.2095-4255.2019.03.013
Abstract
ObjectiveTo analyze epidemiological characteristics of brucellosis in Xinjiang Production and Construction Corps and to provide evidences for control and prevention of the disease.
MethodsRetrospective study method was used to collect the epidemic characteristics of cases and serological surveillance of brucellosis data in Xinjiang Production and Construction Corps from 2013 to 2017, the time, region, population distribution characteristics and laboratory test results of the disease were analyzed.
ResultsIn 2013 - 2017, the Xinjiang Production and Construction Corps reported a total of 3 287 cases of brucellosis, with an average annual incidence of 24.02/100 000, and no death case was reported. During the period, the incidence was 21.11/100 000, 29.73/100 000, 26.68/100 000, 20.10/100 000 and 19.23/100 000, which showed a decline trend in general (linear χ2 = 23.67, P < 0.01). The largest cumulative numbers of reported cases of the Corps were in five divisions, they were the Eighth Division with 599 cases, the Sixth Division with 470 cases, the Fourth Division with 366 cases, the Tenth Division with 320 cases and the Ninth Division with 313 cases, and they accounted for 62.91% (2 068/3 287) of the total number of cases in the whole Corps. Brucellosis occurred in each month of the year, the number of cases reported from March to August accounted for 72.59% (2 386/3 287), the peak incidence occurred in May and June, showing obvious seasonal fluctuation. Of all reported cases, 74.78% (2 458/3 287) were men, and 25.22% (829/3 287) were women, 38.97% (1 281/3 287) were at the ages of 40 - 49 years, farmer was the highest occupation which accounted for 47.52% (1 562/3 287). Totally 24 120 blood samples were collected from high-risk occupation during the period and 457 samples were positive for Brucella antibody, with an average positive rate of 1.89%, of the positive cases, 52.30% (239/457) had symptoms of brucellosis.
ConclusionsOn the whole, the epidemic of brucellosis in Xinjiang Production and Construction Corps is declining year by year. But as the epidemic slowly expands, all departments should strengthen joint prevention and control measures, control and eliminate the source of infection. At the same time, we should strengthen the propaganda, education and behavior intervention for high-risk occupational groups.
Key words:
Brucellosis; Epidemiologic characteristics; Occupational population; Serum analysis
Contributor Information
Tao Hu
Department of Preventive Medicine, School of Medicine, Shihezi University, Shihezi 832000, China
Fei Han
Department for Disease Control and Prevention, Xinjiang Production and Construction Corps Center for Disease Control and Prevention, Urumqi 830002, China
Yongnian Zhao
Department for Disease Control and Prevention, Xinjiang Production and Construction Corps Center for Disease Control and Prevention, Urumqi 830002, China
Zheng Gong
College of Public Health, Xinjiang Medical University, Urumqi 830002, China
Fanka Li
Department of Preventive Medicine, School of Medicine, Shihezi University, Shihezi 832000, China
Xinjiang Production and Construction Corps Center for Disease Control and Prevention, Urumqi 830002, China
