CURRENTNATIONAL KJ: March 31 deadline for Covid-19 booster dose is finalEditor Selangor JournalMarch 3, 2022 by Editor Selangor JournalMarch 3, 2022 SERDANG, March 3 — The March 31 deadline for Sinovac primary vaccine recipients to get a Covid-19 booster dose injection to retain their fully vaccinated...