Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.Title2009 pandemic influenza A (H1N1) virus infections -- Chicago, Illinois, April-July 2009.AuthorsCenters for Disease Control and Prevention (CDC)PublicationMorbidity and Mortality Weekly Report, 2009, Vol 58, Issue 33, p913ISSN0149-2195Publication typearticle