This product detect human serum or plasma samples only.The accuracy of the test results is related to the sample collection process and storage conditions. Samples was not stored properly or repeated freeze-thaw cycles will affect the test results.Negative results may occur if the concentration of 2019-nCoV antibodies in the sample is beyond the lowest detection limit of this card, or if there is no 2019-nCoV antibody in the sample.The reference value of serum antibody detection is limited if patients with impaired immune function or receiving immunosuppressive therapy.This kit is only used for qualitative detection of 2019-nCoV antibodies in human serum/plasma.Same as all diagnostic reagents, the test result of the kit is for clinical reference only and should not be used as the sole basis for clinical diagnosis and treatment, but should be determined by the doctor after all clinical and laboratory test results.