Pfizer urged to hold off on coronavirus vaccine until late November: report FiercePharmaCOVID-19: The Most Complicated Vaccine Campaign Ever The AtlanticVaccines 101: How new vaccines are developed nature videoCouple in COVID-19 vaccine clinical trial share experience WDIV ClickOnDetroitCOVID-19 vaccine trials might begin early next year says local expert KMTV 3 News NowView Full Coverage on Google News