South African COVID-19 Strain Resistant To Pfizer And BioNTech Vaccines

The coronavirus variant discovered in South Africa may, to some extent,

“break through” the vaccine against COVID-19 co-produced by the American Pfizer and the German BioNTech. 

During the study, two expert groups analyzed 150 vaccinated Israeli citizens who tested positive for coronavirus.

The prevalence of the South African variant of the coronavirus among those vaccinated was eight times higher than among the unvaccinated population.

The authors note that the purpose of the work was not to study the effectiveness of the vaccine. 

We found a disproportionately high levelof the South African variant among people vaccinated with a second dose compared with the unvaccinated group. This means the South African variant is capable of piercing the vaccine's defenses to some extent. 

Research text

Experts warned that the study has not yet passed peer review. Also, they note, the sample of people infected with the South African variant was small due to its rarity in Israel.

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