Positive nucleic acid for novel coronavirus is the main indication for the diagnosis of neo-coronavirus infection. Patients who present with symptoms of fever, cough, malaise, and chest congestion, especially after having been to Wuhan or Hubei, or having been to a community where the neo-coronavirus occurred, or attending a cluster gathering, need to have a nucleic acid test for the neo-coronavirus. If the test is positive, the possibility of neo-coronavirus infection is considered. The final diagnosis requires a blood test to compare the molecules with known neo-coronavirus molecules, and only if there is an exact match is the diagnosis of neo-coronavirus made. Patients who are positive for nucleic acid need to be taken seriously and should be self-isolated or isolated in the hospital. Because of the higher possibility of their infection with neo-coronavirus, there is no need to be overly afraid, as the final definitive diagnosis requires molecular testing of the blood. Content source: Dr. You Lai