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President Joe Biden's Covid-19 response team is holding a news briefing Wednesday on the coronavirus pandemic, which has infected more than 29 million Americans and killed at least 527,720 in a little over a year.
Two administration sources told NBC News that the U.S. government plans to buy 100 million additional doses of Johnson & Johnson's Covid-19 vaccine. Biden will announce the plans Wednesday during a White House meeting with executives from J&J and Merck.
J&J currently has a deal with the U.S. government to provide 100 million doses by the end of June. The federal government shipped out nearly 3.9 million doses of the single-shot vaccine last week and says it plans to distribute 16 million more by the end of this month.