Used in veterinary research to quantify interleukin-2 levels in canine biological samples such as serum, plasma, or cell culture supernatants. Helps monitor immune system activity, evaluate vaccine efficacy, and study autoimmune diseases, infectious diseases, and cancer immunotherapy in dogs. Supports development of therapeutic strategies by providing accurate measurement of IL-2, a key cytokine involved in T-cell activation and immune regulation. Widely used in preclinical studies and diagnostic laboratories focused on canine health and immunology.