Presiden Joko Widodo (left) and Minister of Health Budi Gunadi Sadikin (middle) survey the mass vaccination of health workers with Sinovac's Coronavac vaccine at Jakarta's Istora Senayan Stadium on Thursday (4/2/2021). ANTARA FOTO/HO/Setpres-Kris/mrh/rwa.(SETPRES-KRIS)