Additional file 1: of Shiga toxin-producing escherichia coli infections in Norway, 1992–2012: characterization of isolates and identification of risk factors for haemolytic uremic syndrome BrandalLin WesterAstrid LangeHeidi LøbersliInger LindstedtBjørn-Arne VoldLine KapperudGeorg 2015 Reported outbreaks of human STEC infections, Norway 1992–2012. Characteristics of both local and nationwide STEC outbreaks detected in Norway from 1992–2012.