EXCLUSIVE: Top executives from companies leading breakneck vaccine effort tell Lester Holt of hopes, challenges

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Dec 03, 2020 EXCLUSIVE: Top executives from companies leading breakneck vaccine effort tell Lester Holt of hopes, challenges Top executives of Pfizer, Moderna and Johnson & Johnson said in an interview with NBC News' Lester Holt that after their companies developed potential Covid-19 vaccines at a breakneck pace, some of their biggest challenges still lie ahead, including quickly producing enough doses and ensuring fair distribution through the uneven U.S. health care system. Read more on this story at NBCNews.com and watch the interview on "Dateline" at 10 p.m. ET/9 p.m. CT. Read More Get the NBC News Mobile App Follow NBC News Check out all of NBCNEWS Newsletters here. Update Preferences | Unsubscribe | Contact | Privacy Update Preferences Unsubscribe Contact Privacy