The Omicron variant of the new coronavirus ‘dramatically compromises’ the ability of vaccines from four major brands – and booster shots – to prevent infection, according to a new study. new.
Researchers at Columbia University tested the Omicron variant in the blood of people who received two doses of vaccines from Pfizer, Moderna, Johnson & Johnson and AstraZeneca, as well as boosters from the first two companies.
They found a whopping 21-fold decrease in Omicron-neutralizing antibodies in samples from people given two doses of Pfizer, compared with the original Covid-19 fiber. The drop was 8.6-fold in samples from people taking two doses of Moderna jab.
Worse still, the levels of antibodies in samples of people who received two doses of the Johnson & Johnson and AstraZeneca vaccines were so low that they were undetectable, according to the report. research released on Wednesday. That means those vaccines essentially offer no protection against the Omicron variant.
According to research by David Ho and 20 other researchers at the university in New York City, ‘widespread’ mutations of the Omicron variant can greatly compromise the effectiveness of all four vaccines. big.
Patients who received the booster shot had a 6.5-fold reduction in antibodies to the Omicron variant compared with the original strain. That suggests that Omicron ‘may still pose a risk’ to hypersensitive people, according to the study.
These findings are consistent with emerging clinical data on the Omicron variant showing higher rates of re-infection and vaccine breakthrough.
‘Even the third booster shot may not provide adequate protection from Omicron infection.’
This is one of the latest studies showing that the Omicron variant seems to be able to spread quickly and can more easily bypass vaccine protection than the parent strain, and that the Delta variant is still dominating. so in America.
The Columbia researchers warn that the study could hint at further dangers in the future associated with the Omicron variant.
The scientists wrote: ‘It’s not too far-fetched to think that this (Covid-19) is just one mutation or two more resistant to current antibodies.
‘We must devise strategies to predict the direction of virus evolution and develop agents that target better conserved viral elements.’
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https://metro.co.uk/2021/12/17/omicron-greatly-compromises-all-covid-vaccines-including-boosters-15790164/?ITO=metro-trending Omicron 'significantly compromises' all Covid vaccines including boosters