Pfizer's COVID vaccine shows 'robust' results in early trial Medical XpressPfizer/BioNTech COVID-19 vaccine continues to show strong effect in early-stage study Seeking AlphaCovid vaccine update: Tracking progress against coronavirus The Washington PostNIH-Moderna Investigational COVID-19 Vaccine Shows Promise SciTechDailyPfizer, BioNTech report promising Phase I/II data of Covid-19 vaccine Clinical Trials ArenaView Full Coverage on Google News