TY - JOUR AU - Julie K. O'Donnell AU - John Halpin AU - Christine L. Mattson AU - Bruce A. Goldberger AU - Matthew Gladden A1 - AB - Sharp increases in opioid overdose deaths since 2013 are partly explained by the introduction of illicitly manufactured fentanyl into the heroin market. Outbreaks related to fentanyl analogs also have occurred. One fentanyl analog, carfentanil, is estimated to be 10,000 times more potent than morphine. Fentanyl analogs are not routinely detected because specialized toxicology testing is required. This is the first report using toxicologic and death scene evidence across multiple states to characterize opioid overdose deaths. Fentanyl was involved in >50% of opioid overdose deaths, and >50% of deaths testing positive for fentanyl and fentanyl analogs also tested positive for other illicit drugs. Approximately 700 deaths tested positive for fentanyl analogs, with the most common being carfentanil, furanylfentanyl, and acetylfentanyl. BT - Morbidity and Mortality Weekly Report C5 - Healthcare Disparities; Opioids & Substance Use CP - 43 DO - 10.15585/mmwr.mm6643e1 IS - 43 JF - Morbidity and Mortality Weekly Report N2 - Sharp increases in opioid overdose deaths since 2013 are partly explained by the introduction of illicitly manufactured fentanyl into the heroin market. Outbreaks related to fentanyl analogs also have occurred. One fentanyl analog, carfentanil, is estimated to be 10,000 times more potent than morphine. Fentanyl analogs are not routinely detected because specialized toxicology testing is required. This is the first report using toxicologic and death scene evidence across multiple states to characterize opioid overdose deaths. Fentanyl was involved in >50% of opioid overdose deaths, and >50% of deaths testing positive for fentanyl and fentanyl analogs also tested positive for other illicit drugs. Approximately 700 deaths tested positive for fentanyl analogs, with the most common being carfentanil, furanylfentanyl, and acetylfentanyl. PY - 2017 SP - 1197 EP - 1202+ T1 - Deaths Involving Fentanyl, Fentanyl Analogs, and U-47700 - 10 States, July-December 2016 T2 - Morbidity and Mortality Weekly Report TI - Deaths Involving Fentanyl, Fentanyl Analogs, and U-47700 - 10 States, July-December 2016 U1 - Healthcare Disparities; Opioids & Substance Use U2 - 29095804 U3 - 10.15585/mmwr.mm6643e1 VL - 66 Y1 - 2017 ER -