000171069 001__ 171069
000171069 005__ 20260505142650.0
000171069 0247_ $$2doi$$a10.3390/ani16081251
000171069 0248_ $$2sideral$$a149141
000171069 037__ $$aART-2026-149141
000171069 041__ $$aeng
000171069 100__ $$aJacob-Ferreira, João
000171069 245__ $$aEpidemiological Insights into Small Ruminant Lentiviruses in Portuguese Production Systems
000171069 260__ $$c2026
000171069 5060_ $$aAccess copy available to the general public$$fUnrestricted
000171069 5203_ $$aSmall ruminant lentiviruses are longstanding viral infections affecting sheep and goats worldwide, resulting in reduced efficiency and economic losses. In Portugal, updated epidemiological data are scarce. The aim of this study was to assess the seroprevalence and risk factors for SRLV in Portugal. The study was conducted in Portuguese flocks of ovine and caprine species. Flocks were randomly chosen, and producers were invited to answer a questionnaire. The indirect ELISA test, ID Screen® MVV/CAEV Indirect, was made to detect infection. We collected samples from 59 flocks, of which 55.93% (CI 95%: 43.26–68.60%) had at least one positive animal. Of these flocks, 1302 individual samples presented a seroprevalence of 32.95% (CI 95%: 30.08–35.81%). Regarding the risk factor analysis, the multivariable mixed-effects logistic regression model at the individual level identified variables with increased odds of SRLV seropositivity. Caprine species (OR = 2.47; CI 95%: 1.01–6.03), non-autochthonous breed (OR = 2.95; CI 95%: 1.23–7.06), animals older than two years old (OR = 1.95; CI 95%: 1.29–2.94), dairy aptitude (OR = 8.15; CI 95%: 2.53–26.24), unknown serostatus of newly acquired animals (OR = 9.41; CI 95%: 2.93–30.23) and participation in livestock competitions (OR = 4.25; CI 95%: 1.42–12.73) were significantly associated with increased odds of seropositivity. SRLV has been confirmed in both regions of Portugal studied, with a significant regional disparity that is likely attributable to differences in management practices. The identification of risk factors specific to each production system is crucial for the development and implementation of voluntary control programs.
000171069 536__ $$9info:eu-repo/grantAgreement/ES/FEDER/UIDP/00772/2020
000171069 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttps://creativecommons.org/licenses/by/4.0/deed.es
000171069 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000171069 700__ $$aCoelho, Ana Cláudia
000171069 700__ $$aVila, Ana Grau
000171069 700__ $$0(orcid)0000-0002-7822-6646$$aLacasta, Delia$$uUniversidad de Zaragoza
000171069 700__ $$aValentim, Ramiro
000171069 700__ $$aQuintas, Hélder
000171069 7102_ $$11009$$2617$$aUniversidad de Zaragoza$$bDpto. Patología Animal$$cÁrea Medicina y Cirugía Animal
000171069 773__ $$g16, 8 (2026), 1251$$pAnimals (Basel)$$tAnimals$$x2076-2615
000171069 8564_ $$s328171$$uhttps://zaguan.unizar.es/record/171069/files/texto_completo.pdf$$yVersión publicada
000171069 8564_ $$s2544900$$uhttps://zaguan.unizar.es/record/171069/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000171069 909CO $$ooai:zaguan.unizar.es:171069$$particulos$$pdriver
000171069 951__ $$a2026-05-05-13:37:05
000171069 980__ $$aARTICLE