Moderna’s Covid-19 vaccine put to final test in 30,000 volunteers in the US – Hindustan Times

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Several other vaccines made by China and by Britain’s Oxford University began smaller final-stage tests in Brazil and other hard-hit countries earlier this month.
Moderna’s Covid-19 vaccine put to final test in 30,000 volunteers in the US – Hindustan Times

Several other vaccines made by China and by Britain’s Oxford University began smaller final-stage tests in Brazil and other hard-hit countries earlier this month.
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