Single dose of Pfizer vaccine generates strong immune response, study shows

Researchers found a single dose of the Pfizer vaccine generates a strong immune response (Nick Potts/PA)

The Pfizer/BioNTech vaccine generates a robust immune response in 99% of people after one dose, new research suggests.

One dose of the vaccine protects against severe disease and after two jabs, levels of protection are even stronger – underlining the importance of people coming forward for their second shot.