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Serological evidence of antibodies to Flaviviridae in wild birds in Portugal

2024Journal article Open access
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dc.contributor.authorLoureiro, Filipa
dc.contributor.authorCardoso, Luís
dc.contributor.authorMatos, Ana Cristina
dc.contributor.authorPintado, Cristina Santos
dc.contributor.authorSilva, Filipe
dc.contributor.authorFerreira, Mariana
dc.contributor.authorBrandão, Ricardo
dc.contributor.authorLopes, Carolina
dc.contributor.authorLopes, Ana Patrícia
dc.contributor.authorMesquita, João Rodrigo
dc.contributor.authorMatos, Manuela
dc.contributor.authorCoelho, Ana Cláudia
dc.date.accessioned2025-01-03T16:18:35Z
dc.date.available2025-01-03T16:18:35Z
dc.date.issued2024
dc.description.abstractEmerging infectious diseases are a major threat to biodiversity and an important public health issue. Flaviviruses are the cause of several emerging vector-borne zoonotic arboviruses whose distribution is currently increasing in Europe. The evidence that West Nile virus (WNV) circulates in resident and migratory species has implications for both animal and public health and should therefore be studied in depth. USUTU (USUV), Bagaza (BAGV) and tick-borne encephalitis virus (TBEV) are other viruses that are beginning to spread more widely. An integrated surveillance program, namely in birds, is essential for reducing the risk of infection in human populations within the One Health principles. In the present study, wild birds admitted to wildlife rehabilitation centers in Portugal were sampled. Two hundred eight blood samples were assayed serologically for antibodies to faviviruses by using a commercial ELISA kit. An overall seroprevalence of 19.6% (95% confdence interval [CI]: 13.7–26.7%) was observed. Antibodies against faviviruses were detected in 13 (35.1%) diferent species of wild birds. Accipitriformes (26.7%; 95% CI: 18.5–36.2%) and Strigiformes (26.7%; 95% CI: 14.6–42.0%) were the orders with the highest seroprevalence rates recorded. There were no statistically signifcant diferences (p=0.725) between the geographical regions (NUTS II) studied, but a statistically signifcant diference (p=0.017) was found between sex (male: 34.4%; female: 4.8%). A higher seroprevalence was detected in adults (32.1%) than in juvenile birds (9.3%) (p=0.014), and age was considered a risk factor for favivirus infection in wild birds (odds ratio 1.4; 95% CI: 0.5–4.0). More epidemiological studies are needed in Portugal since the actual spread of the genus Flavivirus throughout the country is unknown.pt_PT
dc.description.sponsorshipCERAS, CRAS-HVUTAD, CERVAS, CIARA and RIAS teams for their help in collecting samples and data. Inês Cabaça, for her help and companionship in the analyses, and the technicians of the Laboratory of Microbiology, IPCB.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationLOUREIRO, Filipa [et al.] (2024) - Serological evidence of antibodies to Flaviviridae in wild birds in Portugal. Animal Diseases. 4:1. DOI: 10.1186/s44149-024-00136-9pt_PT
dc.identifier.doi10.1186/s44149-024-00136-9pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.11/9271
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectELISApt_PT
dc.subjectFlaviviruspt_PT
dc.subjectOne Healthpt_PT
dc.subjectSeroprevalencept_PT
dc.subjectWest Nile viruspt_PT
dc.subjectZoonosispt_PT
dc.titleSerological evidence of antibodies to Flaviviridae in wild birds in Portugalpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue1pt_PT
oaire.citation.titleAnimal Diseasespt_PT
oaire.citation.volume4pt_PT
person.familyNameFernandes Loureiro
person.familyNameCardoso
person.familyNameMatos
person.familyNameSantos Pintado
person.familyNameLopes
person.familyNameMesquita
person.familyNamede Matos
person.familyNameCoelho
person.givenNameFilipa Raquel
person.givenNameLuís
person.givenNameAna
person.givenNameCristina Maria Baptista
person.givenNameAna Patrícia
person.givenNameJoão
person.givenNameMaria Manuela Outeiro
person.givenNameAna
person.identifier188445
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person.identifier.orcid0000-0001-8769-8103
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person.identifier.ridJ-8310-2013
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rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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