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Continue to ChatStudy: Pfizer's corona vaccine is less effective against the South African strain https://israelnational.news/study-pfizers-corona-vaccine-is-less-effective-against-the-south-african-strain.html
Study: Pfizer's corona vaccine is less effective against the South African strain https://israelnational.news/study-pfizers-corona-vaccine-is-less-effective-against-the-south-african-strain.html