4th Covid-19 vaccine shot: Do you need one?

Covid Booster shot

KUALA LUMPUR: With new Covid-19 variants emerging amid easing pandemic restrictions, some are concerned about waning immunity and have called for a second vaccine booster dose (fourth jab) to increase protection levels.  Experts and the public, however, are divided on the need for a second booster, a debate that re-emerged following the United States (US) […]