What are the crucial steps in finding a vaccine for Covid-19?

As the coronavirus casualties rise and the pandemic spreads to the world, finding a vaccine for Covid-19 becomes a pressing matter. Here are the key steps. Check out these playlists about Coronavirus Life Under Quarantine http://trt.world/Quarantine My Coronavirus Story http://trt.world/MyCstory Covid-19 playlist with instant stories from around the globe. (New updates everyday) http://trt.world/pandemic #Covid-19 #Vaccine #Pandemic