SARS-CoV-2 RT-PCR and Chest CT, two complementary approaches for COVID-19 diagnosis

Relationship of the cycle threshold values of SARS-CoV-2 polymerase chain reaction and total severity score of computerized tomography in patients with COVID 19

“…This study agrees with the suggestion by Farfour et al that infection prevention and control should be implemented in all suspected patients on the basis of epidemiological, clinical or radiological findings, and these measures should be stopped only when the diagnosis is excluded (Farfour et al, 2020). In this study, nasopharyngeal viral load was inversely associated with the severity score of chest CT on admission.…”

Reply to “A SARS-CoV-2 RT-PCR and Chest CT, two complementary approaches for COVID-19 diagnosis”

“…We agree with the Farfour’s comments that “Using such a strategy could, therefore, encourage to stop infection prevention and control (IPC) measure before the RT-PCR result was obtained” [ 2 ]. Nowadays, the testing capacity has dramatically increased and lots of clinical nucleic acid testing laboratories have been established, which reduced the turn-around time.…”

“…Farfour et al introduced the previous study on the early stage diagnostic value of chest CT by Pan F’s et al and described that chest CT displayed high specificity but low sensitivity mainly in patients presenting within the first four days of the disease [ 5 ]. However, we thought if lesion was found on CT, early isolation was the first emergency for respiratory infectious diseases.…”

The ID NOW COVID-19, a high-speed high-performance assay

“…Using this sampling device, the test could be repeated in the case of invalids, and further analyses such as screening of genetic variants or genome sequencing could be performed with the same sample. However, as for all biological tests, the results of the ID NOW COVID-19 should be interpreted according to clinical and epidemiological contexts [ 25 ].…”