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Continue to ChatSouth African variant could 'break through' Pfizer vaccine, says Israeli study https://beforeits.news/south-african-variant-could-break-through-pfizer-vaccine-says-israeli-study-7.html
South African variant could 'break through' Pfizer vaccine, says Israeli study https://beforeits.news/south-african-variant-could-break-through-pfizer-vaccine-says-israeli-study-7.html