Used in immunological research to detect and quantify Staphylococcus protein A produced by human samples. Commonly applied in studies involving Staphylococcus aureus infections, especially to measure immune response in serum or plasma. Widely utilized in clinical labs and biomedical research for diagnosing infections, monitoring disease progression, and evaluating vaccine efficacy. The kit enables high-throughput screening with high sensitivity and specificity, making it valuable in both academic and pharmaceutical settings.