Well, they're doing different things, I mean, in the sense that the Abbott tests has just been approved is a molecular test, right? And basically so -- so basically that is testing -- that test in the antigen. So that can pick up an infection virtually immediately. The antibody test that we are -- we have developed and are developing in the case of the rapid is an antibody test, right? So, of course, you'll only actually develop the antibody a number of days after infection. But typically, the IGM you'll get after -- the IGM antibody you’ll get after about three days and the IgG maybe after kind of day seven maybe 7 days to 10 days. But, of course, to give you an example, some of the importance of -- some -- I mean in any event, most people aren't being tested, actually, ironically until many days after they actually are infected. But leaving that aside, but what's happening if you look at the statistics that we're seeing at the moment, of course, they're complete monstrously understating the actual number of infections. And if I just take an example of the U.K., right, beside us here and they really only testing people when they're really, really sick, so there is lots of people, younger people, and indeed some older people who are getting sick and getting over, and of course, they would never get a test unless they get really sick. And of course, it comes to a point then where they say it's very useful to know if in fact, you actually did have the condition and if you have developed the antibodies, because if you have developed the antibodies, you can go into any environment without a mask, whatever and are safe. So you're safe to go back to work and you're safe maybe to the healthcare worker, et cetera, et cetera. So as this whole thing moves forward antibody tests are going to become really an essential component of this whole thing, whole battle. And the other, yeah, and of course, there are a lot less expensive as well and bearing in mind that our antibody test, ELISA will run on blood, with blood and our rapid run with whole a large on the fingerstick loaded lancet. Another important point to bear in mind by the way is that it’s not really being said, but the molecular tests, although, they're very accurate. The swabs that are being got sometimes aren't actually as accurate in the sense that they're not getting a good enough sample. So our estimates are that may be really they're only, 80%, 80%, 85% accurate, because -- not because of the underlying technology is in good enough, but rather because the quality of the samples that's been procured by people have sometimes, limited check and experience isn't good enough.