Three doses of BNT162b2 vaccine confer neutralising antibody capacity against the SARS-CoV-2 Omicron variant

We report the levels of neutralising antibodies against Wuhan, Delta and Omicron variants in unimmunized infected (group 1), immunised and boosted (group 2) and infected immunised and boosted (group 3) adult individuals. Our observations support the rapid administration of a booster vaccine dose to prevent infection and disease caused by Omicron.

Automated summary

This study reports the levels of neutralizing antibodies against Wuhan, Delta, and Omicron variants in different groups of individuals. The findings support the use of booster vaccines to prevent infection and disease caused by the Omicron variant.