Morganella morganii

Morganella morganii (previously known as Proteus morganii) is a Gram-negative rod-shaped bacterium that belongs to the Morganellaceae family and Enterobacteria group.

Morganella morganii is not normally pathogenic, but can (rarely) become the causative agent of nosocomial infections and cause the following:

  • Urinary tract infections

  • Soft tissue infections

  • Respiratory infections

  • Meningitis

  • Sepsis

Morganella morganii is part of the healthy intestinal flora of humans and animals. The pathogen is also found in the soil and water.

Relevance of pathogen in transmission in endoscopy

  • Gastroenterology: Not relevant

  • Pulmonology: Low

  • Ear, nose, and throat: Not relevant

  • Urology: Low

Relevance for endoscope surveillance

  • High concern organism

Transmission route

The pathogen is transmitted endogenously and via direct or indirect contact with contaminated persons and objects.

Resistance to antibiotics

Morganella morganii belongs to the multi-resistant Gram-negative (MRGN) bacteria. The pathogen exhibits resistance to beta-lactams and polymyxins, among others. Morganella morganii is an ESBL (extended spectrum beta-lactamase)-forming pathogen.