04-17-2020, 01:19 PM
(04-16-2020, 05:13 AM)OutsiderFan Wrote: There were a lot of early Chinese cases where multiple test had to be run to find positive results. The false negatives seemed to happen at a high rate, and there is reason to believe a good number of false negatives were never tested again.
This is one of the reasons I stopped believing the Chinese numbers in February.
Are the negative tests a problem with the test, the procedures, or a characteristic of the disease, at least in some patients?
A case of SARS-CoV-2 carrier for 32 days with several times false negative nucleic acid tests
Quote:it took a total of nine nucleic acid tests to confirm the diagnosis, among which the first eight RT-PCR results were negative or single-target positive. In addition to coughing up phlegm during her stay in the hospital, she did not develop chills, fever, abdominal pain, diarrhea and other clinical symptoms. Since initial antiviral treatment, the lung lesions were absorbed. But the sputum nucleic acid test was still positive(She did have coughing, and initial CT indicated the disease.)