Quintas, HelderMínguez González, OlgaGrau Vila, AnaPérez, ValentinCoelho, Ana Cláudia2022-05-162022-05-162021Quintas, Helder; Mínguez González, Olga; Grau Vila, Ana: Pérez, Valentin; Coelho, Ana Cláudia (2021). A serosurvey of Mycobacterium avium subsp. paratuberculosis infection of goats in the North of Portugal. Acta Veterinaria Hungarica. ISSN 1588-2705. 70:1, p. 1-81588-2705http://hdl.handle.net/10198/25462To better understand the epizootiology of caprine paratuberculosis in the North of Portugal, a crosssectional study was conducted from 2014 to 2015. The seroprevalence and risk factors for Mycobacterium avium subsp. paratuberculosis (Map) seropositivity were evaluated. Antibodies against Map were determined by a commercial ELISA. In 936 sera tested from 56 goat herds, 120 (12.8%, 95% CI: 10.8– 15.1%) goats and 34 (60.7%, 95% CI: 47.6–72.4%) herds were positive. Risk factors for seropositivity were investigated by logistic regression models. The odds of Map seropositivity were found to be higher for animals with clinical signs, OR 5 5.1 (95% CI: 2.7–9.6%), animals belonging to herds with previous wasting disease, OR 5 2.3 (95% CI: 1.1–4.8%), and accumulation of manure in the herd, OR 5 3.1 (95% CI: 1.7–5.7%). The potential risk factors identified in this study support the current recommendations for the control of paratuberculosis in these and other animals.engGoatEpizootiologyMycobacterium avium subspecies paratuberculosisSeroprevalenceELISAPortugaljournal article10.1556/004.2021.00051