蜜芽传媒

Heroin use in the US has surged in the past decade as experts say people using opioid painkillers are increasingly turning to heroin. Many of the users were previously addicted to prescription painkillers. Dr Debra Houry is the Director of CDC's National Center for Injury Prevention and Control.

(Picture :Drugs are prepared to shoot intravenously by a user addicted to heroin / Credit:Getty Images)