Scientists work to unlock secrets of new COVID-19 strain spreading across South Africa
President Biden's chief medical adviser Dr. Anthony Fauci says he is concerned by a coronavirus variant emerging in South Africa. The new strain has led to a surge of new cases across the country and CBS News got rare access to a team of scientists investigating it. Debora Patta reports.
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Scientists work to unlock secrets of new COVID-19 strain spreading across South Africa
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