<unk> are<unk>  of the intestines, and may refer to: * Gut flora, which are always present and usually harmless * Pathogenic<unk>  of<unk> l gastroenteritis * The taxonomic family Enterobacteriaceae * The taxonomic order Enterobacterales
Enteric bacteria 
Bacteria
Indicator bacteria
Yeast
Carcinogenic bacteria
Coliform bacteria
Multidrug-resistant bacteria
Multidrug-resistant Gram-negative bacteria