Pfizer, Moderna, J&J pledge 240 million total Covid-19 vaccine doses by the end of March
The United States can expect to see a total of 240 million doses of Covid-19 vaccine by the end of March, drug companies told a House subcommittee Tuesday. Pfizer and Moderna — the two companies with Covid-19 vaccines authorized for emergency use in the United States — have pledged to make a combined total of
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