I got an email from Cedars-Sinai last week because a few of my doctors practice there, and found the below interesting. He keeps touting the antibody tests they've taken, but looks like they aren't as reliable as he thinks. But whatever, I hope his kid stays safe and healthy.
"b. There has been a lot of media attention about antibody (serology) testing for COVID-19. Antibody testing is not used to diagnose COVID-19 and does not influence clinical management in any way. A few important things to know:
If antibodies are present, the test result could indicate that you have had the novel coronavirus. The antibodies could also indicate other coronaviruses like the common cold.
Antibody testing cannot be used to predict individual immunity. In other words, we do not know with any certainty that you cannot get COVID-19 again. If there is any immunity, we also don't know how long the potential immunity could last."