@CNN: The number of overdose deaths involving the potent narcotic fentanyl and variations of the drug nearly doubled between the last half of 2016 and the first half of 2017, a new CDC report finds https://t.co/qLyu6jEvTS https://t.co/o7YwFWY3hW

@CNN: The number of overdose deaths involving the potent narcotic fentanyl and variations of the drug nearly doubled between the last half of 2016 and the first half of 2017, a new CDC report finds https://t.co/qLyu6jEvTS https://t.co/o7YwFWY3hW