Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleNew clues to the emergence of flu pandemics.AuthorsClaas, Eric C.J.; Osterhaus, Albert D.M.E.AbstractThe discovery of a new virulence mechanism in an influenza A (H1N1) virus may help to explain how flu viruses acquire virulence and why the 1918 flu pandemic was so devastating.SubjectsINFLUENZA viruses; MICROBIAL virulence; HEMAGGLUTININ; PLASMINPublicationNature Medicine, 1998, Vol 4, Issue 10, p1122ISSN1078-8956Publication typeArticleDOI10.1038/2617