Israeli data shows South African variant able to ‘break through’ Pfizer vaccine

Israeli data shows South African variant able to ‘break through’ Pfizer vaccine

The South African variant of the coronavirus is notably more adept at “breaking through” the Pfizer-BioNTech vaccine than other variants are, Israeli scientists have found, in a first-of-its-kind real-world study.

Israel has used the Pfizer vaccine almost exclusively to vaccinate millions of citizens, with a version by Moderna, based on similar innovative mRNA technology, used minimally.

A team from Tel Aviv University and the Clalit healthcare organization sequenced the swabs of 150 Israelis who tested positive for COVID-19 despite having been vaccinated.

In their study, the prevalence of the South African strain among vaccinated individuals who were infected despite their inoculation was eight times higher than its prevalence in the unvaccinated infected population. Though the number of such infections among the vaccinated was relatively small, the findings indicated that this variant was far more successful in getting through vaccinated individuals’ defenses than other strains.

“Based on patterns in the general population, we would have expected just one case of the South African variant, but we saw eight,” Prof. Adi Stern, who headed the research, told The Times of Israel. “Obviously, this result didn’t make me happy.”

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Source: Times of Israel

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