Q. WHAT IS THE EFFICACY RATE AFTER VACCINATION?

A major new study of vaccine effectiveness against Delta in 32,000 people in the US shows that Moderna is even more effective than Pfizer against the Delta variant. The Moderna vaccine is 95 per cent effective at preventing hospitalisation with Delta, while Pfizer sits at 80 per cent. Moderna is 92 per cent effective at preventing the need for urgent care and emergency room visits, while Pfizer is 77 per cent effective.