{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,1]],"date-time":"2026-06-01T19:43:16Z","timestamp":1780342996047,"version":"3.54.1"},"reference-count":53,"publisher":"American Society for Microbiology","issue":"21","license":[{"start":{"date-parts":[[2017,11,1]],"date-time":"2017-11-01T00:00:00Z","timestamp":1509494400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.asm.org\/non-commercial-tdm-license"}],"funder":[{"DOI":"10.13039\/100000060","name":"HHS | NIH | National Institute of Allergy and Infectious Diseases","doi-asserted-by":"publisher","award":["1R15AI107702-01"],"award-info":[{"award-number":["1R15AI107702-01"]}],"id":[{"id":"10.13039\/100000060","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["journals.asm.org"],"crossmark-restriction":true},"short-container-title":["J Virol"],"published-print":{"date-parts":[[2017,11]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n          <jats:p>\n            Two subtypes of influenza A virus (IAV), avian-origin canine influenza virus (CIV) H3N2 (CIV-H3N2) and equine-origin CIV H3N8 (CIV-H3N8), are enzootic in the canine population. Dogs have been demonstrated to seroconvert in response to diverse IAVs, and naturally occurring reassortants of CIV-H3N2 and the 2009 H1N1 pandemic virus (pdmH1N1) have been isolated. We conducted a thorough phenotypic evaluation of CIV-H3N2 in order to assess its threat to human health. Using ferret-generated antiserum, we determined that CIV-H3N2 is antigenically distinct from contemporary human H3N2 IAVs, suggesting that there may be minimal herd immunity in humans. We assessed the public health risk of CIV-H3N2 \u00d7 pandemic H1N1 (pdmH1N1) reassortants by characterizing their\n            <jats:italic>in vitro<\/jats:italic>\n            genetic compatibility and\n            <jats:italic>in vivo<\/jats:italic>\n            pathogenicity and transmissibility. Using a luciferase minigenome assay, we quantified the polymerase activity of all possible 16 ribonucleoprotein (RNP) complexes (PB2, PB1, PA, NP) between CIV-H3N2 and pdmH1N1, identifying some combinations that were more active than either parental virus complex. Using reverse genetics and fixing the CIV-H3N2 hemagglutinin (HA), we found that 51 of the 127 possible reassortant viruses were viable and able to be rescued. Nineteen of these reassortant viruses had high-growth phenotypes\n            <jats:italic>in vitro<\/jats:italic>\n            , and 13 of these replicated in mouse lungs. A single reassortant with the NP and HA gene segments from CIV-H3N2 was selected for characterization in ferrets. The reassortant was efficiently transmitted by contact but not by the airborne route and was pathogenic in ferrets. Our results suggest that CIV-H3N2 reassortants may pose a moderate risk to public health and that the canine host should be monitored for emerging IAVs.\n          <\/jats:p>\n          <jats:p>\n            <jats:bold>IMPORTANCE<\/jats:bold>\n            IAV pandemics are caused by the introduction of novel viruses that are capable of efficient and sustained transmission into a human population with limited herd immunity. Dogs are a a potential mixing vessel for avian and mammalian IAVs and represent a human health concern due to their susceptibility to infection, large global population, and close physical contact with humans. Our results suggest that humans are likely to have limited preexisting immunity to CIV-H3N2 and that CIV-H3N2 \u00d7 pdmH1N1 reassortants have moderate genetic compatibility and are transmissible by direct contact in ferrets. Our study contributes to the increasing evidence that surveillance of the canine population for IAVs is an important component of pandemic preparedness.\n          <\/jats:p>","DOI":"10.1128\/jvi.00637-17","type":"journal-article","created":{"date-parts":[[2017,8,17]],"date-time":"2017-08-17T00:30:18Z","timestamp":1502929818000},"update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":24,"title":["Zoonotic Risk, Pathogenesis, and Transmission of Avian-Origin H3N2 Canine Influenza Virus"],"prefix":"10.1128","volume":"91","author":[{"given":"Hailiang","family":"Sun","sequence":"first","affiliation":[{"name":"Department of Basic Sciences, College of Veterinary Medicine, Mississippi State University, Mississippi State, Mississippi, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sherry","family":"Blackmon","sequence":"additional","affiliation":[{"name":"Department of Basic Sciences, College of Veterinary Medicine, Mississippi State University, Mississippi State, Mississippi, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guohua","family":"Yang","sequence":"additional","affiliation":[{"name":"Department of Basic Sciences, College of Veterinary Medicine, Mississippi State University, Mississippi State, Mississippi, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kaitlyn","family":"Waters","sequence":"additional","affiliation":[{"name":"Department of Basic Sciences, College of Veterinary Medicine, Mississippi State University, Mississippi State, Mississippi, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tao","family":"Li","sequence":"additional","affiliation":[{"name":"Viral Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, Maryland, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ratanaporn","family":"Tangwangvivat","sequence":"additional","affiliation":[{"name":"Department of Basic Sciences, College of Veterinary Medicine, Mississippi State University, Mississippi State, Mississippi, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yifei","family":"Xu","sequence":"additional","affiliation":[{"name":"Department of Basic Sciences, College of Veterinary Medicine, Mississippi State University, Mississippi State, Mississippi, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daniel","family":"Shyu","sequence":"additional","affiliation":[{"name":"Department of Basic Sciences, College of Veterinary Medicine, Mississippi State University, Mississippi State, Mississippi, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Feng","family":"Wen","sequence":"additional","affiliation":[{"name":"Department of Basic Sciences, College of Veterinary Medicine, Mississippi State University, Mississippi State, Mississippi, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jim","family":"Cooley","sequence":"additional","affiliation":[{"name":"Department of Pathobiology and Population Medicine, College of Veterinary Medicine, Mississippi State University, Mississippi State, Mississippi, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lucy","family":"Senter","sequence":"additional","affiliation":[{"name":"Department of Clinical Sciences, College of Veterinary Medicine, Mississippi State University, Mississippi State, Mississippi, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaoxu","family":"Lin","sequence":"additional","affiliation":[{"name":"Viral Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, Maryland, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Richard","family":"Jarman","sequence":"additional","affiliation":[{"name":"Viral Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, Maryland, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Larry","family":"Hanson","sequence":"additional","affiliation":[{"name":"Department of Basic Sciences, College of Veterinary Medicine, Mississippi State University, Mississippi State, Mississippi, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Richard","family":"Webby","sequence":"additional","affiliation":[{"name":"Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, Tennessee, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiu-Feng","family":"Wan","sequence":"additional","affiliation":[{"name":"Department of Basic Sciences, College of Veterinary Medicine, Mississippi State University, Mississippi State, Mississippi, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"235","reference":[{"key":"e_1_3_3_2_2","doi-asserted-by":"publisher","DOI":"10.20506\/rst.19.1.1220"},{"key":"e_1_3_3_3_2","first-page":"170","volume-title":"Influenza A virus (FLUA)","author":"Mahy B","year":"1997","unstructured":"Mahy B . 1997. 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