Omicron variant can escape Pfizer vaccine: Study
Laboratory research has suggested that the Omicron variant can partially escape antibody immunity induced by the Pfizer-BioNTech COVID-19 vaccine.
The research, led by Alex Sigal from the Africa Health Research Institute in South Africa, has been submitted to medRxiv, a preprint server for health sciences.
The research confirms predictions that a large number of mutations in the spike protein and elsewhere on the Omicron variant would translate into some evasion of the immune response induced by the Pfizer-BioNTech vaccine.
Mr Sigal said on Twitter Tuesday that his lab tested blood from 12 people vaccinated with two doses of the Pfizer-BioNTech vaccine and found that there was a 41-fold decrease in the ability of antibodies from the vaccine to neutralise the Omicron variant.
(Xinhua/NAN)
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