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New concerns raised over South African variant of COVID-19

The race to get people vaccinated is more critical than ever as new research shows the South African variant of COVID-19 has some resistance to antibodies. CBS News foreign correspondent Debora Patta reports from South Africa, and then John Moore, a professor of microbiology and immunology at Weill Cornell Medical College, joined CBSN's Tanya Rivero to explain what this means for the fight against the pandemic.
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