We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleInfluenza pandemic periodicity, virus recycling, and the art of risk assessment.AuthorsDowdle WRPublicationEmerging infectious diseases, 2006, Vol 12, Issue 1, p34ISSN1080-6040Publication typearticleDOI10.3201/eid1201.051013