Influenza is an acute respiratory disease caused by a virus. Influenza is often divided into types A, B, and C, and influenza viruses found mostly in patients are type A or type B. GenBody Influenza A/B Ag is an in vitro diagnostic reagent that can quickly detect influenza A and B virus antigens present in human nasopharyngeal feces using immunochromatography. The measurement principle is that specific antibodies to influenza virus antigens are bound to gold particles, and specific antibodies to influenza virus antigens are bound to the test line of the membrane. Conjugates react first with influenza virus antigens collected from nasal pharyngeal secretions to form an antigen-antibody complex, which travels as it spreads to the membrane by capillary action. On the way, a secondary antigen-antibody reaction takes place with a specific antibody against the influenza virus antigen bound to the membrane in advance, indicating a visible red line to determine the result.