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Pfizer Vaccine May Not Fully Protect Against South African Variant Advertisement COVID may be evolving faster than we can make vaccines. A recent study in Israel all but confirms that the Pfizer vaccine may be less effective against the South African variant of the virus. Usually, you need two doses of a vaccine to be fully protected from the virus but the research says that the South African variant or the B.1.351 variant can even penetrate through the protection of two doses of the vaccine. The study was done by a group of researchers from Tel Aviv University and Clalit, Israel’s biggest health care organization. According to Adi Stern, one of the researchers, “We found a disproportionately higher rate of the South African variant among people vaccinated with a second dose, compared to the unvaccinated group. This means that the South African variant is able, to some extent, to break through the vaccine’s protection.”

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