Nucleic acid testing usually involves the collection of human respiratory secretions and blood, and is usually not harmful to human health. In the case of nucleic acid testing, the only contact with the subject is when blood and respiratory secretions are taken, after which the testing of the specimen is done at the testing facility. As far as the sampling process is concerned, there is no harm to the tested person. The purpose of nucleic acid testing is to analyze the genetic sequence of pathogens to determine whether a person is infected or not. In rare cases, the process of taking nasal swabs and throat swabs may result in injuries to the mucous membranes of the throat due to improper handling by the tester or non-cooperation by the test subject, but the injuries are mild and usually do not result in long term or serious injuries, and they can usually recover on their own. In addition to these, some discomfort may also be caused by excessive nervousness during the test, but it is not directly related to the test. It can be seen that the nucleic acid test is safe and can be used by anyone, and the person being tested does not need to worry too much.