JANUARY 27TH, 2022 CONN HASTINGS MEDICINE, NANOMEDICINE, PUBLIC HEALTH Researchers at Northwestern University have discovered naturally-occurring extracellular vesicles in the blood that contain the ACE2 protein, which is the cellular target of SARS-CoV-2. The vesicles act as a binding site for viral particles within the body, and prevent them from binding to and infecting cells. Unlike...