The Dengue IgG & IgM Antibody Test checks for antibodies your body makes to fight dengue, helping tell if you have a recent infection (IgM positive) or a past one (IgG positive), or both, which is key for early treatment and knowing if you’re immune. IgM appears early (days after symptoms) and fades, while IgG shows up later and stays, indicating previous exposure, with both tests often done together (plus NS1 antigen for very early stages) for a complete picture of infection status