This kit is used for the in vitro qualitative detection of respiratory syncytial virus antigen and respiratory adenovirus antigen in oral pharyngeal swab samples.

Both respiratory syncytial virus and respiratory adenovirus can cause respiratory infections with similar clinical symptoms, mainly fever, cough, nasal congestion, throat discomfort, fatigue, headache, muscle aches and other symptoms. Some patients are accompanied by shortness of breath, bronchitis or pneumonia.

This kit is immunochromatographic and uses double-antibody sandwich method to detect antigens from Influenza A virus (IAV), Influenza B virus (IBV), adenovirus (ADV) or respiratory syncytial virus (RSV). 

During detection, the treated specimens are loaded into the sample wells of the test card. When the concentration of IAV/IBV/ADV/RSV antigen in specimen is higher than the minimum detection limit, the viral antigen will form complexes with labeled antibodies first. Under chromatography, the complexes move forward along the nitrocellulose membrane till captured by pre-coated monoclonal antibody of IAV/IBV/ADV/RSV in detection zone on nitrocellulose film (T) to form a pink/purple reaction line on the detection zone, at this point the result is positive; conversely, if there is no viral antigen or the concentration of antigen in specimen is below the minimum detection limit, no pink/purple reaction line appears in the detection zone, at this point the result is negative. 

Regardless of whether the sample contains viral antigens or not, a pink/purple reaction line will appear in the quality control zone (C), the pink/purple reaction line that appears in the quality control zone (C) is the criterion for determining if the chromatography process is normal.