Used in microbiology for the selective isolation and detection of *Salmonella* species, particularly *Salmonella Typhi* and *Salmonella Paratyphi*, from clinical specimens such as blood, stool, and urine. It contains selective agents that inhibit the growth of Gram-positive bacteria and most Gram-negative enteric organisms, allowing *Salmonella* to grow while suppressing background flora. The agar formulation supports the differentiation of *Salmonella* based on colony morphology and biochemical reactions, making it valuable in diagnostic laboratories during outbreaks or in areas with high prevalence of enteric fever. Commonly used in public health and hospital labs for rapid and accurate identification of typhoidal *Salmonella*.