From Baylor College of Medicine, Houston (H.M.E.S.), and Javara, The Woodlands (C.K.) — both in Texas; Brigham and Women’s Hospital, Boston (L.R.B.), and Moderna, Cambridge (A.A., H.C., W.D., S.H., B.L., D.M., R.P., F.S., J.E.T., H.Z., J.M.) — both in Massachusetts; Meridian Clinical Research, Baton Rouge, LA (B.E., F.E.); University of Miami, Miami (S.D.-L.), and DeLand Clinical Research Unit, DeLand (B.R.) — both in Florida; University of Pittsburgh School of Medicine, Pittsburgh (J.M.M.); Emory... (At 2021-11-04)