Which Biotech Company Has the Most Promising Coronavirus Vaccine?

The COVID-19 pandemic isn't subsiding in the U.S., with more than 70,000 new cases per day as of July 15. Nearly 25 states have now rolled back their reopening plans as the nation struggles to contain the deadly virus.

Fortunately, there are over 140 coronavirus vaccines in development. Out of this group, four vaccines are currently frontrunners.