https://www.selleckchem.com/pr....oducts/CP-690550.htm
Ninety-four patients who underwent Ab testing during the study period were eligible for study enrolment, and the PCR test was performed in 40 of them. Only one patient was diagnosed with acute stage COVID-19 based on a positive PCR test. Antibodies were positive in six (6.4%) of the 94 patients. Five of the six Ab-positive patients were negative for PCR, and the test was not performed in the sixth patient. All the six patients had prior symptoms suggestive of infection, and respiratory symptoms were more noticeable than fever. The Ab