For some people who are in high-risk areas and who may be infected with the COVID-19, it is very important to do a nucleic acid testing. but it is not suitable to do the testing if there are the following conditions：   1. 30 minutes before taking samples, it is not advisable to do nucleic acid testing for people who …

The Advantages of the Virus Sample Swab Virus sampling swab: for the flu, swine flu, avian flu, hand, foot and mouth and other respiratory and intestinal virus nasal and throat sampling. product composition: ⑴ nylon flocking. Third, the product features: ① the use of international and convenient sterilization of the Zhisu packaging. ② γ-ray sterilization, to ensure that sterile. ③ …