COVID-19 booster vaccine: A simple explanation

The Pfizer vaccine was approved for the public as a third dose. It is currently the only top-up vaccine available to those who received their second dose more than six months ago. A veteran broadcaster R.Sathyanathan details the third or booster vaccine administered all over Australia. Produced by RaySel.

Digital generated image of COVID-19 vaccine bottle standing on curve multi colored diagram against blue background. Source: Moment RF

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