In the fall of 2015, Félix was often sick and had frequent ear infections and bronchitis. Worried, his doctor delved further, and the diagnosis came one day at Sainte-Justine hospital: the boy had acute lymphoblastic leukemia (ALL). Félix spent two months in the hospital, undergoing treatments. Unsurprisingly, playing outside is what he likes best, and he wants to be a construction worker when he grows up.