We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleImpact of an Emergent Norovirus Variant in 2009 on Norovirus Outbreak Activity in the United States.AuthorsYen, Catherine; Wikswo, Mary E.; Lopman, Ben A.; Vinje, Jan; Parashar, Umesh D.; Hall, Aron J.PublicationClinical Infectious Diseases, 2011, Vol 53, Issue 6, p568ISSN1058-4838Publication typearticleDOI10.1093/cid/cir478