Booster shot provides more neutralising antibodies, even against Omicron

The antibodies provided by Covid-19 booster doses are not only effective at recognising the virus, but also neutralising it. — Filepic

A study involving 286 volunteers conducted during a surge of Covid-19 cases in Bahia, a state in north-east Brazil, reinforces the importance of a third dose of vaccine to protect against all main variants of the SARS-CoV-2 virus, including Omicron.

The study, which was published in the Journal of Medical Virology, found that people who had been given three doses of a Covid-19 vaccine had more antibodies capable of neutralising the SARS-CoV-2 virus than those who had not completed the primary vaccination schedule, and even people who had previously had Covid-19.