Moderna's CEO Stéphane Bancel said on Friday the firm was working hard to have a booster vaccine against Covid-19 variants approved by the late summer or early autumn.
Bancel said at the same virtual event on vaccine manufacturing that Moderna was on track to make up to a billion doses of Covid-19 vaccines this year and up to 1.4 billion in 2022.
(Published 23 April 2021, 13:09 IST)
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