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Equine influenza virus (EIV) causes severe acute respiratory disease in horses. Currently, the strains belonging to the H3N8 subtype are divided into two clades, Florida clade 1 (FC1) and Florida clade 2 (FC2), which emerged in 2002. Both FC1 and FC2 clades were reported in Asian and Middle East countries in the last decade. In this study, we described the evolution, epidemiology, and molecular characteristic of the EIV lineages, with focus on those [ver mas...]
dc.contributor.authorMiño, Samuel
dc.contributor.authorMojsiejczuk, Laura
dc.contributor.authorGuo, Wei
dc.contributor.authorZhang, Haili
dc.contributor.authorQi, Ting
dc.contributor.authorDu, Cheng
dc.contributor.authorZhang, Xiang
dc.contributor.authorWang, Jingfei
dc.contributor.authorCampos, Rodolfo
dc.contributor.authorWang, Xiaojun
dc.date.accessioned2020-02-10T15:59:23Z
dc.date.available2020-02-10T15:59:23Z
dc.date.issued2019-07
dc.identifier.issn0022-538X
dc.identifier.otherhttps://doi.org/10 .1128/JVI.00116-19.
dc.identifier.urihttp://hdl.handle.net/20.500.12123/6711
dc.identifier.urihttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC6580976/
dc.description.abstractEquine influenza virus (EIV) causes severe acute respiratory disease in horses. Currently, the strains belonging to the H3N8 subtype are divided into two clades, Florida clade 1 (FC1) and Florida clade 2 (FC2), which emerged in 2002. Both FC1 and FC2 clades were reported in Asian and Middle East countries in the last decade. In this study, we described the evolution, epidemiology, and molecular characteristic of the EIV lineages, with focus on those detected in Asia from 2007 to 2017. The full genome phylogeny showed that FC1 and FC2 constituted separate and divergent lineages, without evidence of reassortment between the clades. While FC1 evolved as a single lineage, FC2 showed a divergent event around 2004 giving rise to two well-supported and coexisting sublineages, European and Asian. Furthermore, two different spread patterns of EIV in Asian countries were identified. The FC1 outbreaks were caused by independent introductions of EIV from the Americas, with the Asian isolates genetically similar to the contemporary American lineages. On the other hand, the FC2 strains detected in Asian mainland countries conformed to an autochthonous monophyletic group with a common ancestor dated in 2006 and showed evidence of an endemic circulation in a local host. Characteristic aminoacidic signature patterns were detected in all viral proteins in both Asian-FC1 and FC2 populations. Several changes were located at the top of the HA1 protein, inside or near antigenic sites. Further studies are needed to assess the potential impact of these antigenic changes in vaccination programs. IMPORTANCE The complex and continuous antigenic evolution of equine influenza viruses (EIVs) remains a major hurdle for vaccine development and the design of effective immunization programs. The present study provides a comprehensive analysis showing the EIV evolutionary dynamics, including the spread and circulation within the Asian continent and its relationship to global EIV populations over a 10-year period. Moreover, we provide a better understanding of EIV molecular evolution in Asian countries and its consequences on the antigenicity. The study underscores the association between the global horse movement and the circulation of EIV in this region. Understanding EIV evolution is imperative in order to mitigate the risk of outbreaks affecting the horse industry and to help with the selection of the viral strains to be included in the formulation of future vaccines.es_AR
dc.formatapplication/pdfeng
dc.language.isoenges_AR
dc.publisherAmerican Society for Microbiologyeng
dc.rightsinfo:eu-repo/semantics/restrictedAccesseng
dc.sourceJournal of virology 93 (13) : e00116-19. (Julio 2019)es_AR
dc.subjectEquine Influenzaviruseng
dc.subjectVirus de la Influenza Equinaes_AR
dc.subjectEvolutioneng
dc.subjectEvoluciónes_AR
dc.subjectInfluenzaviruses_AR
dc.subjectVaccineseng
dc.subjectVacunaes_AR
dc.subjectAsiaes_AR
dc.subjectPhylogenyeng
dc.subjectFilogeniaes_AR
dc.titleEquine influenza virus in Asia: phylogeographic pattern and molecular features reveal circulation of an autochthonous lineageeng
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articleeng
dc.typeinfo:eu-repo/semantics/publishedVersioneng
dc.description.origenInstituto de Virologíaes_AR
dc.description.filFil: Miño, Samuel. Chinese Academy of Agricultural Sciences. Harbin Veterinary Research Institute. National Key Laboratory of Veterinary Biotechnology; China. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Virología; Argentinaes_AR
dc.description.filFil: Mojsiejczuk, Laura. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Microbiología, Inmunología, Biotecnología y Genética. Cátedra de Virología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentinaes_AR
dc.description.filFil: Guo, Wei. Chinese Academy of Agricultural Sciences. Harbin Veterinary Research Institute. National Key Laboratory of Veterinary Biotechnology; Chinaes_AR
dc.description.filFil: Zhang, Haili. Chinese Academy of Agricultural Sciences. Harbin Veterinary Research Institute. National Key Laboratory of Veterinary Biotechnology; Chinaes_AR
dc.description.filFil: Qi, Ting. Chinese Academy of Agricultural Sciences. Harbin Veterinary Research Institute. National Key Laboratory of Veterinary Biotechnology; Chinaes_AR
dc.description.filFil: Du, Cheng. Chinese Academy of Agricultural Sciences. Harbin Veterinary Research Institute. National Key Laboratory of Veterinary Biotechnology; Chinaes_AR
dc.description.filFil: Zhang, Xiang. Chinese Academy of Agricultural Sciences. Harbin Veterinary Research Institute. National Key Laboratory of Veterinary Biotechnology; Chinaes_AR
dc.description.filFil: Wang, Jingfei. Chinese Academy of Agricultural Sciences. Harbin Veterinary Research Institute. National Key Laboratory of Veterinary Biotechnology; Chinaes_AR
dc.description.filFil: Campos, Rodolfo. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Microbiología, Inmunología, Biotecnología y Genética. Cátedra de Virología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentinaes_AR
dc.description.filFil: Wang, Xiaojun. Chinese Academy of Agricultural Sciences. Harbin Veterinary Research Institute. National Key Laboratory of Veterinary Biotechnology; Chinaes_AR
dc.subtypecientifico


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