Back to matchesWe found a matchYour institution may have rights to this item. Sign in to continue.TitleLook-Back Investigation Follow-Up.AuthorsDanila, Richard N.; MacDonald, Kristine L.; Osterholm, Michael T.PublicationJournal of Infectious Diseases, 1994, Vol 170, Issue 1, p254ISSN0022-1899Publication typeArticleDOI10.1093/infdis/170.1.254