The fact is, that it is quite possible that there is no possible vaccines, and it will remain a sickness like the Flu, which is "uncurable" but most people pass through it without serious conditions.
but there's a flu vaccine, which according to a 2012 meta-analysis was effective 67% of the time. the seasonal flu mutates ~4 times as fast as this coronavirus too, which gives some hope of long lasting herd immunity after a vaccine is found.
https://www.livescience.com/coronavirus-mutation-rate.htmlhttps://en.wikipedia.org/wiki/Influenza_vaccine#Medical_usesSince studies show that people develop immunity after getting cured, they want the majority of the population to have this immunity, however, there is no hard evidence for how long we keep this immunity, temporary or permanent.
what studies? i still don't see anything. i'm dying for info about this since i already had it. the news keeps fearmongering about these south korean cases where recovered people are testing positive again.