yet. and hopefully, most of the states will say like california and washington, and then what we need to do to be prepared for fall. so all three of those things are happening simultaneously. and there are people working on each one of those work streams. the antibody piece is critical, as you described, because at this time, we can't -- if we have let's say asymptomatic status is inversely -- asymptomatic status is inversely related to age. so the younger you are, the more likely you're to be asymptomatic. we have to know that, because we have to know how many people have actually become infected. so when we talked about five days ago, i think on monday, i called on universities to work on an elisa-based test to test for their health workers and really get through that. at the same time, the private sector is working on tests. and what do we want those tests to be? we want those tests to be like what we use for hiv and malaria. finger prick on to a cassette.