The Centers for Disease Control and Prevention (CDC) said that one of its employees - who it said was not involved in the COVID-19 response - has tested positive for the novel coronavirus. It's the first CDC employee to be diagnosed with COVID-19. The individual last worked in the office on March 6. No other details were available at this time. More than 4,000 people in the U.S. have been sickened by COVID-19 and at least 73 have died.