Dr. Susan Petterson is an Associate Professor, Director of Water and Health Pty Ltd in Australia, and part of the World Health Organization working group for harmonization of microbial risk assessment, as well as editor for the IWA Journal of Water Health.

Kate Medlicott is the Technical Officer at the World Health Organization in Geneva, and works at the Department of Public Health and Environment from the WHO.

Dr. Peter Ulleryd is the Regional Medical Officer at the Department of Communicable Disease Control in Sweden.