Nasal Swab Rapid Diagnostic Test

Why we need nasal swabs for covid testing?

After the new coronavirus infects the human body, it will "settle" in the nasal cavity, pharynx, lower respiratory tract, etc., and reproduce. By collecting nasopharyngeal swabs, sputum and other specimens for viral nucleic acid detection, it can be determined whether the human body is infected with the new coronavirus. Carrying out nucleic acid detection of the new coronavirus in the population is of great significance for early diagnosis and treatment, and epidemic prevention and control. Nucleic acid testing among close contacts and the general public can help early detection of people infected with the new coronavirus, especially those who have been infected with the virus but have not yet developed symptoms, so as to facilitate early isolation and treatment measures. It can not only avoid infecting others, but also reduce the risk of serious illness caused by the development of its own disease.

nasal swab rapid test is more convenient than traditional nucleic acid detection, suitable for use in any place, and can quickly produce results.

The accuracy of nasal antigen test is as follows:

Relative Sensitivity=102/(102+2)*100.00%=98.08% 
Relative Specificity=150/(1+150)*100.00%=99.34%
Accuracy=(150+102)/(102+2+1+150)*100.00%=98.82%