Asymptomatic infections can also be detected by nucleic acid testing.
Asymptomatic infections are those that do not cause clinical symptoms, but the body is also infected by the virus, so they can be detected by means of nucleic acid testing.
Taking the new coronavirus as an example, although asymptomatic infected patients do not have clinical symptoms, since they are also infected by the new coronavirus, when they undergo the nucleic acid test, the nucleic acid in the throat secretion can be detected to determine whether they are infected with the new coronavirus, and the diagnosis can be made without combining with the patient’s clinical symptoms.
In addition, asymptomatic infected people are also infectious because their bodies contain the virus, so they need to be actively isolated to avoid infecting others.