Coronavirus News Live Updates: Those administered with Pfizer and AstraZeneca vaccine jabs may need a booster shot as the total antibody levels start to wane six weeks, according to study published in The Lancet Journal.

Coronavirus News Live Updates: Those administered with Pfizer and AstraZeneca vaccine jabs may need a booster shot as the total antibody levels start to wane six weeks, according to study published in The Lancet Journal.