Three vaccine doses protect against Omicron

Wednesday 8 December 2021

United States

The Covid-19 vaccine produced by Pfizer Inc and BioNTech SE is able to neutralise the Omicron variant of the SARS-CoV-2 virus after three doses, preliminary laboratory studies have shown. Two doses of the vaccine appear to be less effective, but still offer protection against the most severe forms of the disease, the companies reported on 8 December.