Stool cultures can detect a wide range of pathogens, including: - Bacteria: _[Salmonella](), [Shigella](), _Escherichia coli_, _[Campylobacter](), and _Clostridium difficile_. - Viruses: [Rotavirus](), norovirus, and adenovirus. - Parasites: _Giardia lamblia_, _Entamoeba histolytica_, and _Cryptosporidium parvum_.