The word "nucleic acid testing" has become a high-frequency word in our daily conversation since the outbreak of Newcastle pneumonia.
Recently, China's new crown pneumonia outbreak broke out again, the latest notification of the outbreak in Shenzhen: 9 new positive cases of this round of the outbreak strains mainly belong to the evolutionary branch of Omicron BA.5 really too heartbreaking!!!
The nucleic acid test is an effective means of diagnosing whether or not you are infected with the new coronavirus.
Nucleic acid testing is mainly divided into two forms of nasal swabs and pharyngeal swabs, mainly through polymerase chain reaction to detect specific nucleic acid sequences in the viral genome, so as to determine whether the subject is infected with the virus at this moment.
Oropharyngeal swabs
What is the material of pharyngeal swab composed of?
The pharyngeal swab material is mainly composed of nylon staple fiber lint head and medical grade ABS plastic rod.
The nylon staple fibers act like a soft brush to improve the collection of cellular material;
The capillary movement between the fibers creates strong hydraulic pressure, thereby ingesting the liquid sample; at the same time, the sample clings to the surface of the swab, making it easy to elute.
The ABS plastic rod does not interfere with PCR amplification and can be used simultaneously with the flocked nasal swab to improve assay accuracy.
