Why do you say there is no vaccine? There’s plenty of them being tested right now. One is ALT or Altimune. I own some stock and don’t want to come off as trying to pump it. They have a vaccine in testing as do several other companies in that sector.
Caution.
There’s never been a vaccine for any kind of coronavirus, and they’ve been worked on extensively in the case of coronaviruses in poultry.