Gravitas: Has Trump found a Coronavirus vaccine?

Sep 18, 2020, 12.30 AM(IST)

US President Donald Trump is promising to deliver a free of cost vaccine to all US citizens by mid-October. But top American Health experts say a vaccine won't be available till 2021 Summer. Palki Sharma Upadhyay tells you how vaccines have taken centre stage in the U.S. Presidential race.