Coronavirus vaccine First evidence copping up the immune system

This Video is about The first hints that a vaccine can train people’s immune system to fight coronavirus have been reported by a company in the US. The Name of Company is Moderna.
Moderna said it was hoping to start a large-scale trial in July, and that it was already investigating how to manufacture the vaccine at scale.
And About Oxford vaccine.
A vaccine pioneered by the University of Oxford is also being tested in people, but there are no results from those trials yet.