| small ruminant pasteurellosis in tigray region, ethiopia: marked serotype diversity may affect vaccine efficacy. | the aim of this study was to investigate the prevalent bibersteinia, mannheimia and pasteurella serotypes, risk factors and degree of serotype co-infections in sheep and goats in the tigray region of ethiopia. serum was collected from 384 sheep and goats from the tanqua-abergelle district of tigray region using cross-sectional random sampling. an indirect haemagglutination test was used for serotyping. risk factors for infections were evaluated by logistic regression. potential clustering of mul ... | 2017 | 28112054 |