Omicron infection poor booster of Covid immunity, study finds

Findings shed light on why breakthrough infections have been common during the Omicron wave

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Omicron variants fuel uptick in COVID-19 cases

People infected with the Omicron variant of the novel coronavirus show poor immunity-boosting against future Covid-19 infection, according to a new study.

The research, published in the journal Science, assessed how people’s immunity following vaccination offers protection against the Sars-CoV-2 virus as well as the protection offered by prior infection.

While recovery post contracting Covid-19 is thought to provide a natural immunity boost against future infection with the virus, scientists, including those from Imperial College London, say Omicron provides a poor natural boost of Covid-19 immunity against re-infection.

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