Booster gives antibody protection against Omicron variant: Lancet

Overall, antibody levels were nearly 2.5 times higher against Omicron after three doses compared to after two jabs

A third dose of Covid-19 vaccine increases the level of antibodies that can effectively neutralise the Omicron variant of coronavirus, according to a study published in The Lancet journal.

Researchers from Francis Crick Institute and the National Institute for Health Research (NIHR), UK, found that antibodies generated in people who had received only two doses of either the AstraZeneca or the Pfizer vaccine were less able to neutralise Omicron as compared to Alpha and Delta variants.

They also found that antibody levels dropped off in the first three months following the second dose but a third ‘booster' dose raised levels