Has there been any known reoccurrence or once you have had it are you immune?

Time will tell: There are either persistent or reinfected cases sporadically described in Asia. This virus is expected to behave more like the flu, therefore reoccurrences seem to be possible. Too early to tell otherwise.

Immunity uncertain: There’s still so much we don’t know about coronavirus. Some people appear to have come down with it more than once so I’m not sure if it truly imparts permanent immunity. Of course this is very worrisome.