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When scientists began working on solutions for the COVID-19 pandemic in early 2020, it seemed unlikely that a safe and effective vaccine would be available in a year, according to
Paul A. Offit, MD.
Yet, by mid-December, the FDA had authorized two messenger RNA (mRNA) vaccines developed by Pfizer-BioNTech and Moderna for emergency use after researchers found they were more than 90% efficacious in late-stage trials data now backed up by real-world evidence.
Vaccine hesitancy in communities of color is real
houmatoday.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from houmatoday.com Daily Mail and Mail on Sunday newspapers.
سرعة إنتاج اللقاحات لم تنل من جودتها
aawsat.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from aawsat.com Daily Mail and Mail on Sunday newspapers.