Emerg Infect DiseidEmerging Infectious Diseases1080-60401080-6059Centers for Disease Control92843952627651Research ArticleHemolytic uremic syndrome surveillance to monitor trends in infection with Escherichia coli O157:H7 and other shiga toxin-producing E. coli.MahonB. E.GriffinP. M.MeadP. S.TauxeR. V.Jul-Sep199733409412