Quantitative PCR technology provides a true DNA/PCR based stool test to measure opportunistic organisms, normal flora, fungi, parasites, and antibiotic resistance genes. can be used in the detection and identification of gastrointestinal microbial nucleic acids and has been clinically validated for the detection of gastrointestinal pathogens that cause infectious colitis or gastroenteritis. It measures a substantial list of opportunistic pathogens as well as a list of FDA-cleared pathogens, including novel targets such as viruses, Microsporidia, and pathogenic virulence factors.