This was in the news today. I would like to see this be widely done. I think (hope) that we would find out that more people have survived this than they realize. I would be glad to do this as a self-presumptive survivor and offer up my plasma to treat others battling COVID-19. I'm sure many others would as well.
The coronavirus test that might exempt you from social distancing—if you pass
Testing for antibodies could help us figure out who is immune and who is not. Here's how it works.