patients that they don t need a negative test to get out of isolation. now i understand the cdc issued an update what do we know? reporter: that s right. the agency is saying no negative test is required to get out of the recommended five day isolation period, though they say you should still wear a mask critics questioned the policy since people could still be contagious the cdc tonight says if you want to take a test and test positive, keep isolating another five days lester peter alexander at the white house, thank you. while the president says testing will improve, right now many americans are waiting days for results and hours to get tested gabe gutierrez went inside one of the country s largest labs, which says it s busier than ever reporter: with lines for rapid covid tests snaking nationwide, wait times for more accurate pcr test results are also stretching longer. i would love to have my results. i want to go back to work reporter: we got a rare look inside one of