and my wife was in the kitchen and i almost passed out, just out of the blue. reporter: 39-year-old sacramento resident justin wilhite has been to the emergency room twice in the last eight days. doctors tell him they are 100% certain he has the virus, but they told him the tests are only for those in dire need. it was more frustrating for my wife, because my wife wanted more definitive answers. reporter: with officials in los angeles setting up this rv park as a possible quarantine site, doctors across the country now pleading with people to stay home. this physician in atlanta holding up a sign, saying, i stayed at work for you. you stay home for us! especially since some of those doctors on the front lines are especially vulnerable, too. i can t walk away from this pandemic while i m needed. but that said, i have at least a ten-fold higher mortality rate. reporter: some hospitals reporting a short supply of ventilators. doctors in other countries have rigged them so pati