Portal de Periódicos da CAPES

Multifactorial correspondence analysis of risk factors for sheep and goat brucellosis seroprevalence

2008; Elsevier BV; Volume: 78; Issue: 1-3 Linguagem: Inglês

10.1016/j.smallrumres.2008.04.007

1879-0941

Adosinda Maria Coelho, Ana Cláudia Coelho, Joaquim Góis, Maria de Lurdes Pinto, Jorge Rodrigues,

Brucella: diagnosis, epidemiology, treatment

This paper reports the investigation of herd characteristics as potential risk factors for sheep and goat brucellosis seroprevalence, based on multifactorial correspondence analysis. The survey was carried out on 4123 herds in Trás-os-Montes e Alto Douro, in the north-east of Portugal. Brucellosis in small ruminants is a disease with Obligatory Notification status in Portugal and is the subject of an Official Eradication Campaign. Multifactorial correspondence analysis identified an association between herds with high seroprevalence (≥5%), intermediate seroprevalence (>0% and 0% and <5%), and contrast with those herds with 3 or more positive animals and high seroprevalence. The significant contribution made by the principal and secondary axes consolidates this explanation. The results of this study suggest that herd size and production type might have an impact on brucellosis seroprevalence.