Used in immunological research to quantify chicken interleukin-2 (IL-2) levels in biological samples such as serum, plasma, or cell culture supernatants. This ELISA kit enables researchers to monitor immune responses in poultry, assess vaccine efficacy, and study the role of IL-2 in T-cell activation and disease resistance. It is particularly valuable in veterinary research, infectious disease studies, and poultry health monitoring where understanding cellular immune function is critical. The assay provides a sensitive and specific means to measure IL-2 concentration, supporting advancements in avian immunology and vaccine development.