What Happens 6 Months after Taking Pfizer/BioNTech Covid-19 Vaccine
Reuters/ The effectiveness of the Pfizer/BioNTech vaccine in preventing infection by the coronavirus dropped to 47% from 88% six months…
Britain Vaccinates First Citizen Against COVID-19
Ninety-year-old nursing home resident Margaret Keenan received the first of two doses of a vaccine jointly developed by U.S.-based pharmaceutical…