Right now, some of the other experts on this panel said we don't understand enough of the immunology of the virus. If it behaves like other viruses, there will be some immunity if you have antibodies. We don't know for how long and how strong. Depending on your local epidemiology, some of these results may be false positives or may not have detected the antibody even if you had it. That's why the immunity task force and researchers studying the human immune system are extremely important in getting at some of those questions. From that perspective, we can't yet interpret the results of those tests.
You also brought up an important point, which is that perhaps there is an ethical dimension to this, when you are now separating people who have an antibody identified and those who do not and what that means and whether there will be a stigma attached to that one way or the other, to people who have been infected or not. It is a very important point, and one that the immunity task force will also be looking at.