 Nyorai kupfuurira kweiyi ndima - Mumakore ake okutanga okuita basa, Arruda akashanda paDhipatimendi reHutano hweHurumende muLaval. Kubva muna 1998 kusvika muna 2012, aiva mutevedzeri wemupurofesa wezvokurapa muDhipatimendi reSocial and Preventive Medicine paUniversité de Montréal. Akanga ari director wezvekuchengetedzwa kwehutano hwevanhu paQuebec Ministry of Health and Social Services kubva muna 2000 kusvika muna 2012. Muna Chivabvu 2012, akagadzwa kuve National Director weHutano hweHurumende. Achiri kushanda mubazi iri, ave achibatanidzwa mukutarisana nekuputika kweSARS muna 2003, denda reH1N1 muna 2009, uye mumatanho ehutano hweveruzhinji panguva yenjodzi yechitima cheLac-Méganticmuna 2013. 