The meaning of nucleic acid:
Polymers composed of nucleotides. It can be divided into ribonucleic acid and deoxyribonucleic acid, which are related to the generation of genetic genes.
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Nucleic acid detection:
The substance of nucleic acid detection is the nucleic acid of virus. Nucleic acid detection is to determine whether the patient is infected by COVID-19 by detecting whether there is nucleic acid of foreign invasive virus in respiratory tract samples, blood or feces. Therefore, once the nucleic acid is "positive", it can prove that there is a virus in the patient.
After COVID-19 infects the human body, it will first reproduce in the respiratory system, so we can judge whether the human body is infected with the virus by detecting the virus nucleic acid in sputum and nasopharyngeal swab. Therefore, the positive nucleic acid test can be used as the diagnostic standard of novel coronavirus infection.
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