Used in veterinary diagnostics to detect bovine tuberculosis in cattle by measuring interferon-gamma levels in blood samples after stimulation with TB-specific antigens. Enables early identification of infected animals, supporting herd management and control programs. Widely applied in surveillance, export testing, and research settings to monitor disease prevalence and evaluate vaccine efficacy. Provides a sensitive and specific alternative to traditional skin testing, especially in areas where routine testing is critical for disease eradication.