I heard Dr. Birx saying last week that she hasn't yet seen enough evidence that you could get the virus a second time. Which would mean that the standard way of thinking would be that you can't get it again, like all other viruses that we know, until proven otherwise.
There isn’t enough evidence because it hasn’t been around long enough, That’s like when they said there isn’t any evidence of community spread, until there was, because they didn’t have adequate testing or time to know. The standard of thinking is it *may or may not* be like those viruses of which you DON’T get immunity (the common cold), as opposed to those (like most flus) which you do get some immunity for some time.
Not knowing the answer to something which is impossible to answer as of yet has no bearing on reality. Even if there is, they don’t understand the parameters of it yet.
So why would you need evidence that you can't get it again?
Because acting before you know will mean people may die?
The virus might mutate into double Dutch chocolate on May 4th. I will need evidence of that first before I let down my guard, though.