Immunodiagnostic Market in China 2015-2019 Report: Immunodiagnostics is a class of in vitro diagnostics that utilizes antigen-antibody reaction as its primary means of detecting infectious diseases, tumors, diabetes, proteins, therapeutic drugs, and allergens. Immunodiagnostics tests are analytical methods that require different immunodiagnostics instruments and antibodies as reagents against the desired antigens to be detected. The test results are used to diagnosis diseases, and they have widespread clinical applications. Immunodiagnostics tests are also helpful in the field of forensic science, environmental science, and food analysis.