- known glucose-6-phosphate dehydrogenase (g6pd) deficiency - known cardiac disease (or under investigation) - currently taking medication contraindicated as per health canada list for hydroxychloroquine - known retinopathy - known hypersensitivity to 4-aminoquinoline compounds - already taking hydroxychloroquine - unwilling to answer follow-up questionnaires - currently in labor - inpatient women at time of covid-19 diagnosis.

- known glucose-6-phosphate dehydrogenase (g6pd) deficiency - known cardiac disease (or under investigation) - currently taking medication contraindicated as per health canada list for hydroxychloroquine - known retinopathy - known hypersensitivity to 4-aminoquinoline compounds - already taking hydroxychloroquine - unwilling to answer follow-up questionnaires - currently in labor - inpatient women at time of covid-19 diagnosis.