الصفحة الرئيسيةNDTV News - World-news 1st Pfizer-BionTech Vaccine Dose Cuts Transmission: UK Studies byashif raza -فبراير 22, 2021 0 تعليقات Data from two separate studies published in the UK on Monday, one in England and another in Scotland, have shown vaccines against Covid-19 are effective in cutting disease transmission and... from NDTV News - World-news https://ift.tt/37DRd0a
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