Sechi, PaolaPaolotto, PaoloMcCrindle, Cheryl Myra EthelwynCenci-Goga, Beniamino T.2014-06-232014-06-232013Sechi, P, Paolotto, P, McCrindle, CME & Cenci-Goga, BT 2013, 'Seroepidemiological study of Johne's-disease in diary cattle in Umbria, Italy', Italian Journal of Animal Science, vol. 12, no. e31, pp. 196-199.1594-4077 (print)1828-051X (online)10.4081/ijas.2013.e31http://hdl.handle.net/2263/40323A total of 788 serum samples from dairy cattle in Umbria, Italy, were tested for the presence of antibodies to Mycobacterium avium subspecies paratuberculosis (Map) using a commercial enzyme-linked immunosorbent assay (ELISA) kit. The sampled animals came from 19 herds representative of the central area of the Umbria county (Perugia and Assisi districts). Using the manufacturer suggested cut-off for a positive test, 44 animals (5.6%) were positive. Using the sensitivity and specificity claimed by the manufacturer of the ELISA kit, the true prevalence in Umbria dairy cattle overall was calculated as 9.7% (99% CI, 7.0%, 12.4%).en© Copyright P. Sechi et al., 2013BovineParatuberculosisJohne’s diseaseMilkCulling of animalsCattle -- DiseasesDairy cattleArticle