the same pattern as measles and chicken pox where permanent immunity is conferred on an individual after exposure and a resulting sickness. That could mean that a vaccine in the case of this Wuhan version might not be viable I surmise. Of course that as fact is not yet known.

I am a little sketchy on details here as that comes from something I read way back, but assume there is still a source for that out in the ether of the internet somewhere, so take my comment for the little it's worth. I am praying for a real solution to this pandemic.