VIETNAM’S ARCT-154 VACCINE SAFE FOR HEALTHY VOLUNTEERS: INITIAL RESULTS HANOI, Sept 30 — Initial results of the clinical trials of Vietnam’s ARCT-154 show that this mRNA COVID-19 vaccine is safe for healthy volunteers, a researcher said. Phase 2 and 3a of the trials are being carried out in Hanoi, nearby Bac Ninh province, and southern...