摘要：In 1979, epidemics of influenza occurred in pigs in Belgium from which were isolated strains of influenza A (Hsw1N1) virus antigenically closely related to Hsw1N1 strains previously isolated from ducks in North America and the Federal Republic of Germany. This finding is considered as the first supportive evidence that an influenza A virus in an avian species might have been transmitted to mammals. Full text Full text is available as a scanned copy of the original print version. Get a printable copy (PDF file) of the complete article (445K), or click on a page image below to browse page by page. Links to PubMed are also available for Selected References . 75 76 77 78
