How necessary are Covid-19 vaccine boosters?

WELL, the upcoming 15th General Election has certainly succeeded in one thing: completely dislodging Covid-19 updates as major news headlines.

The last time the Health Minister urged people to get booster shots was in August. Khairy Jamaluddin was reported as saying on Aug 11 that his ministry would not fix targets for the second vaccine booster until it had “clarity on what it is”.