Used in clinical and research settings to quantitatively measure procalcitonin levels in human serum or plasma. Helps assess the presence and severity of bacterial infections, including sepsis, by providing a sensitive and specific biomarker. Supports differentiation between bacterial and viral inflammation, aiding in antibiotic treatment decisions. Commonly used in studies related to critical care, infectious diseases, and immune response monitoring. The ELISA format allows for high-throughput analysis with reliable results, making it valuable in both diagnostic development and biomedical research.