The FactView Dengue IgG/IgM Antibody Combo test is a diagnostic assay used for the simultaneous detection of both IgG and IgM antibodies produced by the immune system in response to dengue virus infection. Here's more information about this type of diagnostic test: Purpose: The test is used for the diagnosis of dengue virus infection in patients presenting with symptoms consistent with dengue fever or other dengue-related illnesses. Dengue is a mosquito-borne viral infection caused by four closely related viruses (DENV-1, DENV-2, DENV-3, and DENV-4) transmitted by Aedes mosquitoes. Principle: The FactView Dengue IgG/IgM Antibody Combo test is an immunochromatographic assay that detects the presence of both IgG and IgM antibodies in a patient's blood sample. IgM antibodies are typically produced during the acute phase of infection, while IgG antibodies are produced later during the convalescent phase and provide long-term immunity. Components: The test typically includes test cassettes, sample droppers, buffer solutions, and desiccants. The test cassettes contain pre-coated membranes with specific antigens for capturing IgG and IgM antibodies. Procedure: The test procedure involves collecting a small amount of blood from the patient (usually obtained via finger prick) and applying it to the sample well of the test cassette. Buffer solution is then added, allowing the blood sample to migrate along the test strip. Results are typically visible within 15-20 minutes. Interpretation: The appearance of colored lines on the test strip indicates the presence or absence of IgG and IgM antibodies. A visible line in the control region indicates that the test is valid. Additional lines in the test region(s) indicate positive results for IgG and/or IgM antibodies. Sensitivity and Specificity: The FactView Dengue IgG/IgM Antibody Combo test demonstrates high sensitivity and specificity for detecting dengue virus infection. However, like all diagnostic tests, false-positive and false-negative results are possible and should be interpreted in conjunction with clinical findings. Utility: The rapid detection of IgG and IgM antibodies against dengue virus provides valuable information for diagnosing acute or recent dengue virus infection, determining immune status, and guiding patient management decisions.