We are working on it. At This rate a vaccine could happen. Hang on.
A vaccine is NOT a cure, does not guarantee you won't get infected (witness the flu vaccine which in a good year has about a 50% effective rate) and does not stop you from transmitting the virus if it is harbored in your sinuses.
How about we wait until we find out if a large portion of the population might already have immunity by doing antibody titers before we start injecting healthy humans with a questionable cocktail of virus proteins and other toxic adjuvants?
The only way to get rid of the virus is to reduce the number of hosts it can live in by fostering natural immunity against a live, replicating virus rather than immunity to some inert protein.
In the meantime let's treat those who have been adversely affected with anti-virals, HCQ, Vitamin C or whatever combination works.