A comparative study of the seroprevalence of brucellosis in commercial and small-scale mixed dairy-beef cattle enterprises of Lusaka province and Chibombo district, Zambia

被引:29
作者
Chimana, Henry M. [1 ]
Muma, John Bwalya [1 ]
Samui, Kenny L. [1 ]
Hangombe, Benard M. [2 ]
Munyeme, Musso [1 ]
Matope, Gift [3 ]
Phiri, Andrew M. [4 ]
Godfroid, Jacques [5 ]
Skjerve, Eystein [6 ]
Tryland, Morten [5 ]
机构
[1] Univ Zambia, Dept Dis Control, Sch Vet Med, Lusaka, Zambia
[2] Univ Zambia, Sch Vet Med, Dept Paraclin Studies, Lusaka, Zambia
[3] Univ Zimbabwe, Dept Paraclin Vet Studies, Fac Vet Sci, Harare, Zimbabwe
[4] Univ Zambia, Dept Clin Studies, Sch Vet Med, Lusaka, Zambia
[5] Norwegian Sch Vet Sci, Sect Arctic Vet Med, Dept Food Safety & Infect Biol, N-9010 Tromso, Norway
[6] Norwegian Sch Vet Sci, Dept Food Safety & Infect Biol, N-0033 Oslo, Norway
关键词
Brucellosis; Commercial cattle; Lusaka province; WILDLIFE INTERFACE AREAS; RISK-FACTORS; TRADITIONAL CATTLE; SEROLOGICAL TESTS; INFECTION; FARMS; ABORTUS; SPP;
D O I
10.1007/s11250-010-9604-4
中图分类号
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号
0905 ;
摘要
A cross-sectional study was conducted between January 2007 and February 2008 to estimate seroprevalence of brucellosis and identify risk factors associated with Brucella infections in commercial cattle in three districts of Lusaka province (Chongwe, Luangwa, and Kafue; n = 849) and in one rural district from the Central province (n = 48). A total of 897 serum samples were randomly collected from 55 farms along with animal-level data such as sex, age, and parity. Sera were screened for presence of anti-Brucella antibodies using the Rose Bengal test, and positive samples were confirmed using competitive enzyme-linked immunosorbent assay. At the animal level, seroprevalence was estimated at 7.9% (95% CI = 4.4-11.4%) in the Lusaka province and 18.7% (95% CI = 7.5-29.9%) for Chibombo district. Brucellosis seroprevalence varied according to district, with Chongwe district recording the highest compared to other districts. Seroprevalence also varied according to sex with bulls (n = 96) having higher seroprevalence (12.5%; 95% CI = 3.8-21.1%) compared to females (8.1%; 95% CI = 4.6-11.6). Similarly, seroprevalence varied according to age groups, with the age category 1-4 years recording the highest (10.7%). The study recorded relatively low Brucella seroprevalence in commercial farms in Lusaka, compared to the traditional small-scale farms. We suggest that testing and stamping out of infected animals is likely to improve the situation and significantly reduce the public health risk associated with Brucella infections in animals.
引用
收藏
页码:1541 / 1545
页数:5
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