What doesn't kill you makes you stronger
Funny that fear about coronavirus. From what I read, it is deadly mostly for weak people, with deficient immunatory system, more than 60 years persons, etc. What doesn't kill you makes you stronger: a normal guy, in good physical condition, would probably get over it quickly and get a better immunatory system.
So, don't smoke, eat sanely, don't drink too much and do sports at least twice a week and like me you won't even need vaccine (some contains suspicious adjuvents). I think I never got flu, only cold.