SA, the history of attempted vaccines against coronaviruses is not encouraging. Vaccine attempts against SARS and MERS have failed, as have vaccines against the four common cold coronaviruses. Veterinary science provides another long list of failures.
Ironically, this could work out just as the conspiracy theorists have been predicting; just an infinite money-spinner for Big Pharma, life-long injections for the entire population every six months.
Capitalism feeding on the results of its own incompetence.