{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T20:36:38Z","timestamp":1790800598893,"version":"4.1.0"},"reference-count":18,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2015,10,19]],"date-time":"2015-10-19T00:00:00Z","timestamp":1445212800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100000780","name":"European Commission","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100000780","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Zoonoses and Public Health"],"published-print":{"date-parts":[[2016,8]]},"abstract":"<jats:title>Summary<\/jats:title><jats:p>The introduction of the 2009 pandemic H1N1 (<jats:styled-content style=\"fixed-case\">pH<\/jats:styled-content>1N1) influenza virus in pigs changed the epidemiology of influenza A viruses (<jats:styled-content style=\"fixed-case\">IAV<\/jats:styled-content>s) in swine in Europe and the rest of the world. Previously, three <jats:styled-content style=\"fixed-case\">IAV<\/jats:styled-content> subtypes were found in the European pig population: an avian\u2010like H1N1 and two reassortant H1N2 and H3N2 viruses with human\u2010origin haemagglutinin (<jats:styled-content style=\"fixed-case\">HA<\/jats:styled-content>) and neuraminidase proteins and internal genes of avian decent. These viruses pose antigenically distinct <jats:styled-content style=\"fixed-case\">HA<\/jats:styled-content>s, which allow the retrospective diagnosis of infection in serological investigations. However, cross\u2010reactions between the <jats:styled-content style=\"fixed-case\">HA<\/jats:styled-content> of <jats:styled-content style=\"fixed-case\">pH<\/jats:styled-content>1N1 and the <jats:styled-content style=\"fixed-case\">HA<\/jats:styled-content>s of the other circulating H1 <jats:styled-content style=\"fixed-case\">IAV<\/jats:styled-content>s complicate serological diagnosis. The prevalence of <jats:styled-content style=\"fixed-case\">IAV<\/jats:styled-content>s in Greek swine has been poorly investigated. In this study, we examined and compared haemagglutination inhibition (<jats:styled-content style=\"fixed-case\">HI<\/jats:styled-content>) antibody titres against previously established <jats:styled-content style=\"fixed-case\">IAV<\/jats:styled-content>s and <jats:styled-content style=\"fixed-case\">pH<\/jats:styled-content>1N1 in 908 swine sera from 88 herds, collected before and after the 2009 pandemic. While we confirmed the historic presence of the three <jats:styled-content style=\"fixed-case\">IAV<\/jats:styled-content>s established in European swine, we also found that 4% of the pig sera examined after 2009 had <jats:styled-content style=\"fixed-case\">HI<\/jats:styled-content> antibodies only against the <jats:styled-content style=\"fixed-case\">pH<\/jats:styled-content>1N1 virus. Our results indicate that <jats:styled-content style=\"fixed-case\">pH<\/jats:styled-content>1N1 is circulating in Greek pigs and stress out the importance of a vigorous virological surveillance programme.<\/jats:p>","DOI":"10.1111\/zph.12235","type":"journal-article","created":{"date-parts":[[2015,10,19]],"date-time":"2015-10-19T06:41:21Z","timestamp":1445236881000},"page":"370-373","source":"Crossref","is-referenced-by-count":8,"title":["Serological Evidence of Pandemic H1N1 Influenza Virus Infections in Greek Swine"],"prefix":"10.1111","volume":"63","author":[{"given":"C. S.","family":"Kyriakis","sequence":"first","affiliation":[{"name":"Laboratory of Microbiology and Parasitology Faculty of Veterinary Medicine University of Thessaly Karditsa Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"V. 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