Yangboga means positive indication symbol; this means that your body reacts with the reagent used and that the corresponding antigen is present in your body, indicating that you are currently suffering from the disease or that there are certain physiological changes in your body.
Related information: Negative and positive tests are used clinically to diagnose disease. Usually, a negative test suggests that there is no pathology, while a positive test suggests that there is a disease, which requires a combination of different tests to determine.