Wednesday, September 23, 2020

RT @AP: Johnson & Johnson is beginning a huge final-stage study to try to prove if a single-dose COVID-19 vaccine can protect against the virus. It will be one of the world’s largest coronavirus vaccine studies so far, testing in 60,000 people. https://t.co/CWXnKXhI7Z



September 23, 2020 at 07:15AM

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