Previously there were rumors that nucleic acid testing sampling swabs contain ethylene oxide, fluorescent agents and other carcinogenic rumors sparked concern. The rumor said " sampling swabs are not called swabs because they are chemical fibers, professionally named fluorescent probes, which contain carcinogenic highly toxic ethylene oxide, easily broken nylon fibers, morgellons fibers, radioactive elements technetium, fluorescent agents ...... will damage the blood-brain barrier and cause damage to the facial nerve and olfactory nerve."
The Health and Welfare Commission came down to dispel the rumors
June 9, in the State Council joint prevention and control mechanism press conference, the National Health and Health Commission Clinical Inspection Center, deputy director Li Jinming said, sampling swabs look like cotton swabs, but in fact, not cotton swabs, its material is polyester or nylon fibers, it is more similar to the daily life of the toothbrush, toothbrush bristles are also nylon, but sampling swabs in the process of doing, is into millions of tiny fibers vertically and uniformly cover the top of the swab handle end. When sampling, it is like a toothbrush, but it is brushing the posterior pharyngeal wall of the mouth to take cells, and then putting the sampling swab into the sampling tube. Sampling swab is a medical device, there are strict production environment and quality requirements, non-toxic and non-harmful to humans.
Nylon and polyester material advantages
According to the "new coronavirus nucleic acid 10 in 1 mixed testing technical specifications" written: sampling swabs should be used polyester, nylon and other non-cotton, non-calcium alginate material swabs, and the handle is non-wooden material. The fracture point is located about 3 cm from the top of the swab head, easy to break.
From the material point of view, nucleic acid sampling swab consists of swab head and swab rod, the main material of the swab head is polypropylene fiber and nylon fiber, and the main material of the swab rod is ABS material, these materials will not cause harm to the human body.
It is reported that the sampling swab uses spray and electrostatic charge flocking method to make millions of nylon microfibers vertically and evenly attached to the end of the shank. In fact, the toothbrush bristles we use every day is nylon, sampling swabs are covered vertically and uniformly into millions of tiny fibers. In sampling, just like toothbrush, it is brushing the posterior pharyngeal wall of the mouth to take cells, and then put the sampling swab into the sampling tube. Because the nylon and polyester are used, it is easy to get off to the inside of the preservation solution, and the relevant tests are subsequently performed by the laboratory.
