The New Crown Nucleic Acid Test is an assay performed by PCR fluorescence assay to confirm the presence of infection based on the CT value.
Nucleic acid testing is currently the main means of detecting the presence of neocoronavirus infection. After sampling and transportation are completed, the samples are labeled in the laboratory through PCR fluorescence experiments, and the presence of neocoronavirus in the samples is confirmed through constant amplification of the markers.
Then the number of times of amplification, i.e. CT value, is used to confirm whether it meets the criteria of negative or positive, so as to give the test result. The greater the number of cycles and amplifications, the smaller the viral load, and the smaller the possibility of its infectiousness, which is currently defined by a CT value of more than or equal to 35.