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A new variant of the coronavirus, whose mutations display a “jump in evolution,” is driving a spike in Covid infections in South Africa. Thursday, November 25, 2021 5:23 PM EST
So far, 22 positive cases have been identified in South Africa, according to the country’s National Institute for Communicable Diseases. The variant is displaying mutations that might resist neutralization, and scientists are still unclear how effective existing vaccines will be against it.