Dr Mélissa Généreux is a specialist in public health. After having been appointed as Director of Public Health for six years in Estrie (Quebec, Canada), she now acts as a medical advisor at the regional and provincial levels (Quebec). She has developed an expertise in the field of disaster management/psychosocial recovery through her strong involvement during the Lac-Mégantic rail tragedy in 2013, both as a researcher and a decision-maker, as well as through her support brought to health authorities as a consultant during the 2016 Fort McMurray fires (Alberta), the 2017/2019 spring floods (Quebec) and the COVID-19 pandemic. She has developed a strong international network and has contributed to several knowledge transfer activities in the field of psychosocial risk management.