A woman wearing a protective mask walks through an alley in Vancouver's Downtown Eastside as the local health unit has begun prescribing a "safe supply" of narcotic alternatives to combat overdoses due to poisonous additives and to support addicts and the homeless into practicing social distancing to help slow the spread of coronavirus disease (COVID-19) in Vancouver, British Columbia, Canada April 7, 2020. Picture taken April 7, 2020. REUTERS/Jesse Winter