1. TU Wien; Institute of Hydraulic Engineering and Water Resources Management; E222/2, Karlsplatz 13 A-1040 Vienna Austria
2. Interuniversity Cooperation Centre for Water and Health (ICC Water & Health)
3. TU Wien, Centre for Water Resource Systems; E222/2, Karlsplatz, 13 A-1040 Vienna Austria
4. National Institute for Public Health and the Environment (RIVM); Expert Centre for Methodology and Information Services; PO Box 1 3720 BA Bilthoven the Netherlands
5. Utrecht Univ.; Faculty of Geosciences, Dep. of Hydrogeology; Utrecht the Netherlands
6. Medical Univ. of Vienna, Institute for Hygiene and Applied Immunology; the Center for Pathophysiology, Infectiology and Immunology; Kinderspitalgasse 15 1090 Vienna Austria
7. Vienna Municipal Dep. 39, Laboratories of Environmental Medicine; Feldgasse 9 A-1080 Vienna Austria
8. TU Wien; Institute of Chemical Engineering, Research Group Environmental Microbiology and Molecular Ecology; Gumpendorferstraße 1a 1060 Vienna Austria
9. Utrecht Univ.; Faculty of Veterinary Medicine; Institute for Risk Assessment Sciences; Utrecht the Netherlands