Artron One-Step AV-RV Combo Test is an antigen-capture immunochromatographic assay, that detects the presence of adenovirus and/or rotavirus in fecal samples. Monoclonal antibodies specifically against adenovirus and rotavirus, respectively, are 1) conjugated with colloidal gold and deposited on the conjugate pad, and 2) immobilized on the Test Zone (T1 and T2) on the nitrocellulose membrane. When a fecal sample is added, it rehydrates the gold-antibody conjugate and the adenovirus and / or rotavirus, if any in samples, interact with the colloidal gold-conjugated antibodies. The antigen-antibody-colloidal gold complex will migrate towards the test window until the Test Zone (T1 and T2) where they are captured by immobilized antibodies, forming a visible pink line (indicating positive results). If adenovirus and rotavirus is absent in the sample, no pink line will appear in the Test Zone (T1 and T2), indicating negative results.