Summary
An influenza virus strain isolated in Northern Italy in 1977 was identified as belonging to the H3N2 subtype (A/swine/Italy/1850/77). A close antigenic relationship to the human strain A/England/42/72 was demonstrated. Serologic surveys of 548 pig sera from 53 farms in two provinces in Northern Italy demonstrated the existence of antibodies to the swine/Italy/1850/77 strain and to A/Hong Kong/1/68, A/Victoria/3/75 and H1N1 (Hsw1N1) strains in the pig population.
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Ottis, K., Sidoli, L., Bachmann, P.A. et al. Human influenza A viruses in pigs: Isolation of a H3N2 strain antigenically related to A/England/42/72 and evidence for continuous circulation of human viruses in the pig population. Archives of Virology 73, 103–108 (1982). https://doi.org/10.1007/BF01314719
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DOI: https://doi.org/10.1007/BF01314719