Pfizer and BioNTech's Covid-19 vaccine appeared to work against a key mutation in the highly transmissible new variants of the coronavirus discovered in Britain and South Africa - that's according to a laboratory study conducted by the US drugmaker. - Smile 90.4FM

Pfizer and BioNTech’s Covid-19 vaccine appeared to work against a key mutation in the highly transmissible new variants of the coronavirus discovered in Britain and South Africa – that’s according to a laboratory study conducted by the US drugmaker.