A bit of research on Wikipedia on Coronaviruses is not very encouraging . common cold has some coronavirus variants , for which no vaccine exists , and as immunity is concerned , you can get it back multiple times during the same year, some kids up to 7 times per winter...
The good news is that now every laboratory in the world is working on it, as there is serious money to be made, some even do cooperate with one another, and there is serious hope we can get one for wide public use in the next 12-18 months.
What the aviation situation will be then and who will be eager to travel after the economic impact is basically the subject of this discussion.