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Pfizer proposes expanding Covid-19 vaccine trial to include more diversity as race for a vaccine continues

September 13, 2020. Summarized by summa-bot.

The race for a coronavirus vaccine shows no signs of slowing as more companies move their vaccine candidates through clinical trials, growing closer to determining which will be considered safe and effective.

(CNN)The race for a coronavirus vaccine shows no signs of slowing as more companies move their vaccine candidates through clinical trials, growing closer to determining which will be considered safe and effective.

But when asked if people would have to wait until 2021 to get the vaccine, Bourla said he didn't know how long it could take for regulators to approve it.

Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases -- which is working on its own vaccine candidate with Moderna -- said Friday he remains "cautiously optimistic" that a vaccine will be ready by the end of the year.

Eight are in late-stage, large clinical trials as of Friday, per the World Health Organization, including Pfizer's and a candidate by AstraZeneca and the University of Oxford, which announced its trial would resume in the United Kingdom after being halted last week following an unexplained illness in one of the volunteers -- a step experts said is not unprecedented.

"We are urging students to understand the imperative role that they play in stopping this community spread and, ultimately, saving lives," said Aaron Stephens, mayor of East Lansing, Michigan, where Michigan State University students were asked to quarantine after the local health department reported 342 new cases among people affiliated with the university since August 24.

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