family Enterobacteriaceae

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Definition

Noun: A taxonomic family within the order Enterobacterales (historically placed in Eubacteriales). It comprises a large group of Gram-negative, rod-shaped, facultatively anaerobic bacteria. Many members are part of the normal intestinal flora of humans and animals, while others are significant pathogens causing diseases such as gastroenteritis, urinary tract infections, and pneumonia.

Usage

The term "Enterobacteriaceae" is used in scientific and medical contexts to classify and discuss a specific, related group of bacteria. - Salmonella and Escherichia are genera belonging to the family Enterobacteriaceae. - The laboratory report identified the isolate as a member of the Enterobacteriaceae.

Advanced Usage
  • In clinical microbiology, testing for antibiotic resistance patterns is often reported for the Enterobacteriaceae family as a whole due to common resistance mechanisms.
  • The taxonomic rank "family" is sometimes omitted in technical discourse, with "Enterobacteriaceae" used alone to refer to the group (e.g., "infections caused by Enterobacteriaceae").
Variants and Related Words
  • Enterobacterial (adjective): Of or relating to the Enterobacteriaceae.
    • The study focused on enterobacterial virulence factors.
  • Enterobacterium (noun, singular): A single bacterium of the family Enterobacteriaceae.
    • The pathogen was identified as a gram-negative enterobacterium.
Synonyms
  • Enteric bacteria: A common, less formal synonym emphasizing their common habitat in the intestines.
  • Coliforms (in part): This term often refers to a subset of Enterobacteriaceae used as indicators of fecal contamination, such as .
Related Phrases / Concepts
  • Lactose fermenters vs. non-fermenters: A key biochemical test used to differentiate members within the Enterobacteriaceae.
  • ESBL-producing Enterobacteriaceae: A critical medical phrase referring to bacteria in this family that produce extended-spectrum beta-lactamase enzymes, conferring resistance to many antibiotics.
Noun
  1. a large family of Gram-negative rod-shaped bacteria of the order Eubacteriales

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