coronavirus signed an unprecedented pledge meant to boost public confidence in any approved vaccines.The companies said Tuesday that they will stick to the highest ethical and scientific standards in testing and manufacturing and will make the well-being of those getting vaccinated their top priority.The announcement comes amid worries that President Donald Trump will pressure the U.S.
Food and Drug Administration to approve a vaccine before it’s proven to be safe and effective. Widespread coronavirus vaccine not expected until mid-2021: WHO The president has repeatedly said a vaccine could be ready by the end of the year, or even as early as October.