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As U.S. donates 20 million more vaccine doses globally, some countries turn to Russia, China

Despite the U.S. announcing it will share 20 million more doses of COVID-19 vaccines with the world in the coming weeks, global disparities in distribution have grown more evident. As Holly Williams reports, China and Russia are already filling the vacuum distributing their vaccines - which come with serious efficacy concerns - to low-income and developing countries.
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