Enterobacteriaceae is a large family of gram-negative, facultatively anaerobic bacteria that inhabit the intestinal tract of humans and many animals. The term denotes a taxonomic family within the order Enterobacterales, including genera such as Escherichia, Salmonella, and Klebsiella. It is primarily used in microbiology, clinical diagnostics, and infectious disease discussion to group related bacterial pathogens and commensals.
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