MONTREAL -- Researchers at the MUHC think they’ve found a way to use Opal, a bilingual mobile application developed by scientists at the institution, to ensure that non-hospitalized COVID-19 patients still get the care they need. "Most of the patients with COVID-19 will have no symptoms or will have mild symptoms, but they are alone at home and it’s a new disease and it's very stressful," said Dr. Bertrand Lebouche, the principal investigator for a new and just completed study. He calls them "hidden patients" because the pressures of the pandemic on the health-care system and the i...