The swabs used for the New Crown virus nucleic acid test do not contain any drugs. At present, the nucleic acid test conducted during the new crown, in the collection of human nose, pharynx, throat, anus used swabs, cotton swabs are mainly composed of nylon staple fiber fluffy head and medical grade ABS plastic rod composition. And cotton swabs in the production process there is no toxic and harmful substances, on the contrary, it also has the microbial samples kept on the surface of the fiber, as well as can quickly elute the role of the original sample. In addition to cotton swabs, the sampling tubes used after the collection of human specimens also do not contain drugs, generally speaking, the liquid in the sampling tubes is a guanidinium salt-containing and guanidinium salt-free two kinds of liquids. Their main purpose is to prevent secondary infection of the new crown nucleic acid rapid test operator or to maintain the activity of the virus in vitro, as well as the integrity of antigens and nucleic acids, and other levels of action. Therefore, the swabs used for nucleic acid do not contain drugs on them, and you can rest assured that the test can be carried out in the process of nucleic acid testing without too much psychological burden and pressure.