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Pfizer vaccine provides partial protection against Omicron: South African study

Pfizer vaccine provides partial protection against Omicron: South African study…  Omicron’s ability to evade vaccine and infection-induced immunity is “robust but not complete,” said the research director of a laboratory at the Africa Health Research Institute in South Africa.

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Pfizer vaccine provides partial protection against Omicron: South African study
Pfizer vaccine provides partial protection against Omicron: South African study—–

In the first reported experiments measuring the effectiveness of Covid-19 vaccines against the disturbing new strain, researchers at the institute found that the variant could partially escape the vaccine produced by Pfizer and BioNTech.

Still, his escape was not complete and a recall could provide additional protection, Alex Sigal said in an online presentation Tuesday.

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Since South Africa announced the omicron discovery on November 25, around 450 researchers around the world have worked to isolate the highly mutated variant from patient samples, grow it in the lab, verify its genomic sequence, and establish methods of testing it in blood. plasma samples, according to the World Health Organization.

The rapid spread of Omicron in South Africa has raised concerns that the immune protection generated by vaccination or a previous episode of Covid-19 is insufficient to stop re-infections or stem a new wave of cases and hospitalizations. The WHO has warned that omicron could fuel outbreaks with “serious consequences” amid signs it is making the coronavirus more transmissible.

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Work in Sigal’s lab involved testing the blood plasma of people vaccinated against Covid-19 to assess the concentration of antibodies needed to neutralize or block the virus.

The results, along with those from other labs currently underway, will help determine whether existing Covid vaccines need to be modified to protect against omicron.

Sigal’s lab was the first to isolate the beta variant, a strain of the coronavirus that was identified in South Africa in late 2020.

 

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