Immunochromatographic assay
The COVID-19 S-RBD/NP Ab Test is used for qualitative detection of the NP antibody and S-RBD antibody of COVID-19 in human serum/plasma or whole blood. The test is COVID-19 antibody-positive population to assist diagnosis. People who have been infected with the COVID-19 or who have been injected with the inactivated COVID-19 vaccine will have S-RBD antibody and NP antibody positive at the same time, and those who have been injected with mRNA vaccine or adenovirus vector vaccine will only be S-RBD antibody positive. The S-RBD antibody is the most important neutralizing antibody. The presence of the S-RBD antibody represents the human body’s ability to resist the COVID-19. COVID-19 S-RBD/NP Ab Test should not be used as the sole basis for diagnosis.