> That's an antibody test, not an RNA test. Yes, this is an exposure test - which works okay for a completely novel virus like this one. The real question is

> That's an antibody test, not an RNA test. Yes, this is an exposure test - which works okay for a completely novel virus like this one. The real question is whether this has a drop-off factor for immunity for instance (i.e non-infectious herd immune) or if it can differentiate between exposure and carrier for the disease. It might be useful right now, but it will get less useful as the months go by. For instance, the QuantiFeron test for TB tests me as positive because my white blood cells take TB very seriously (or so it looks like).