Single dose of Pfizer vaccine highly effective, real-world data shows

Vials of the Pfizer/BioNTech coronavirus vaccine (Nick Potts/PA)

A single shot of the Pfizer vaccine cuts the chance of hospital admission and death from Covid-19 by more than 75% among the over-80s, according to real-world data from Public Health England (PHE).

Dr Mary Ramsay, head of immunisation at PHE, said this was at the “lower end of the estimate” and the drop in hospital admission and death was thought to be even more profound.