An ambulance drives through downtown Vancouver as the local health unit has started prescribing a "safe supply" of opioid 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 the Downtown Eastside of Vancouver, British Columbia, Canada April 7, 2020. Picture taken April 7, 2020. REUTERS/Jesse Winter