{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,4]],"date-time":"2026-04-04T12:07:12Z","timestamp":1775304432350,"version":"3.50.1"},"reference-count":35,"publisher":"Cambridge University Press (CUP)","issue":"3","license":[{"start":{"date-parts":[[2009,5,15]],"date-time":"2009-05-15T00:00:00Z","timestamp":1242345600000},"content-version":"unspecified","delay-in-days":5097,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Epidemiol. Infect."],"published-print":{"date-parts":[[1995,6]]},"abstract":"<jats:title>SUMMARY<\/jats:title><jats:p>Samples from a sow serum bank representative of the pig population of Great Britain collected during 1991\u20132, were examined for antibodies to influenza A, B and C viruses, using viruses which had been isolated from a variety of hosts. For influenza A viruses there was evidence of the continued circulation of \u2018classical swine\u2019 H1N1 virus (26%) seroprevalence), and human H3N2 viruses (39%) which are antigenically most closely-related to A\/Port Chalmers\/1\/73 virus. In addition antibodies were detected to A\/swine\/England\/201635\/92 (8%), a strain of H3N2 virus which appears to have arisen by antigenic drift from conventional H3N2 swine strains. Specific antibodies (2%) were detected to an H1N1 virus (A\/swine\/England\/195852\/92) related most closely to avian H1N1 strains. In tests with human H1N1 and H3N2 viruses, excluding isolates from pigs, the highest seroprevalence was detected to the prevailing strains from the human population. Serological tests with avian H4 and H10, human H2, equine 1 and 2 influenza A viruses were all negative. Seven pigs seropositive by haemagglutination-inhibition, virus neutralization and immunoblotting assays for antibody to influenza B virus, were randomly distributed geographically suggesting that influenza B viruses may be transmitted to pigs but fail to spread. The seroprevalence to influenza C viruses was 9\u00b79% indicating that these viruses are widespread in pigs. These results provide further evidence that the pig can be infected by a number of influenza viruses, some of which may have significance in the epidemiology of human influenza.<\/jats:p>","DOI":"10.1017\/s0950268800052225","type":"journal-article","created":{"date-parts":[[2009,5,15]],"date-time":"2009-05-15T08:41:37Z","timestamp":1242376897000},"page":"511-520","source":"Crossref","is-referenced-by-count":45,"title":["Serological studies of influenza viruses in pigs in Great Britain 1991\u20132"],"prefix":"10.1017","volume":"114","author":[{"given":"I. H.","family":"Brown","sequence":"first","affiliation":[]},{"given":"P. A.","family":"Harris","sequence":"additional","affiliation":[]},{"given":"D. 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