Small Ruminant Brucella Sero-prevalence and potential risk factor at Dallo-Manna and HarannaBulluk Districts of Bale Zone, Oromia regional state, Ethiopia

A cross-sectional study was carried out on randomly sampled 384 animals to assess the occurrence of small ruminant brucellosis and risk factors contributing for zoonotic potential disease at Dallo-Manna HarannaBulluk districts Bale Zone. Rose Bengal plate test (RBPT) complement fixation (CFT) were used serially. All collected serum samples subjected RBPT first then positive sera with further tested confirmation using CFT. Animal level prevalence 6.5% 2.9%, flock 50% 22% recorded by CFT respectively. Flock is 3.8-fold (95% OR CI = 1.17-12.19) than Haranna-Bulluk 0.32-3.31) but no statistical significant difference (p>0.05). The Chi-square (χ2) analysis indicated that age (χ2=6.18; p<0.05), parity (χ2=0.57; retained fetal membrane (χ2=35.5; p<0.001) abortion history (χ2=45.1; associated Brucella sero-reactors in areas. Small retainedfetal (OR=3, CI: 3.52- 27) (OR=32, 2.26-462.8) also found significantly seropostiveity. Questioner survey revealed only 30% respondents aware brucellosis. Most them (84%) handle aborted materials bare hand, 94% mix sheep goat grazing field watering point. Traditionally habit raw milk consumption com- mon (100%). In conclusion, result this demonstrated presence moderate ruminants identified certain predictors infection. Therefore, based findings, authors suggest need investigation disease-causing agent take proactive control intervention measures. Meanwhile, actors work raising public awareness prevent health hazard due toBrucella infection.
 Key words:- Brucellosis; CFT; RBPT; ruminant; Zoonosis