Omer M K, Skjerve E, Holstad G, Woldehiwet Z, Macmillan A P
College of Agriculture, University of Asmara, Eritrea.
Epidemiol Infect. 2000 Oct;125(2):447-53. doi: 10.1017/s0950268899004501.
Samples from 2427 cattle, 661 goats, 104 sheep, 98 camels and 82 horses were screened for brucella infections by the Rose Bengal Test and positive reactors confirmed by the complement fixation test. In cattle, the highest individual seroprevalence was in dairy herds kept under the intensive husbandry system, with an individual prevalence of 8.2% and unit (herd) seroprevalence of 35.9%. This was followed by the pastoral husbandry system in the Western Lowlands with 5.0% individual but a higher unit (vaccination site) prevalence of 46.1%. The lowest was in the mixed crop-livestock system in the Southern Highlands with individual 0.3% and unit (village) prevalence of 2.4%. In sheep and goats, no positive animals were detected in the mixed crop-livestock areas. In the Eastern Lowlands individual prevalences of 3.8% (goats) and 1.4% (sheep) and unit prevalence of 33.3% (goats) and 16.7% were found, while 14.3% of individual goats and 56.3% of the units in the Western Lowlands were positive. No positive horses were found. The present study documents the first serological evidence of Brucella spp. infection in camels (3.1%) in Eritrea.
通过玫瑰红试验对2427头牛、661只山羊、104只绵羊、98峰骆驼和82匹马的样本进行布鲁氏菌感染筛查，并通过补体结合试验确认阳性反应动物。在牛群中，个体血清阳性率最高的是采用集约化饲养系统的奶牛场，个体阳性率为8.2%，单位（牛群）血清阳性率为35.9%。其次是西部低地的游牧饲养系统，个体阳性率为5.0%，但单位（疫苗接种点）阳性率较高，为46.1%。最低的是南部高地的农牧混合系统，个体阳性率为0.3%，单位（村庄）阳性率为2.4%。在绵羊和山羊中，农牧混合区未检测到阳性动物。在东部低地，山羊个体阳性率为3.8%，绵羊为1.4%，山羊单位阳性率为33.3%，绵羊为16.7%；而西部低地14.3%的个体山羊和56.3%的单位呈阳性。未发现阳性马匹。本研究首次记录了厄立特里亚骆驼感染布鲁氏菌属的血清学证据（3.1%）。
