james hamelin, dr. jody gold, a pediatric and adult psychiatrist and dr. roy is a clinical professor and nbc news medical contributor. what's the latest on the situation in texas? >> reporter: there are a couple of things going on simultaneously right now. good evening. one of them is that states like texas that have been lagging a little bit behind in the testing are really trying to ramp up their efforts right now. you see behind me the multiple tents. this represents the very first public coronavirus testing site in all of houston and there's going to be three more coming online. the capacity for this is about 150 people, not as many today simply because of the fact that the weather is horrible, has pushed some of them out. but the resources are becoming available. the other, and this is really important, is that the guidance is starting to evolve and crystallize in a new sort of way. states do not want to be testing people who are asymptomatic at this point. if you come out and have not prescreened by phone and prescreened on and they've established yo