What Do C19 and Fentanyl have in common?

WUHAN CHINA

>>"'We Are Shipping To The U.S.': Inside China's Online Synthetic Drug Networks"

https://www.npr.org/2020/11/17/916890880/we-are-shipping-to-the-u-s-china-s-fentanyl-sellers-find-new-routes-to-drug-user