M. morganii is a gram-negative facultative anaerobic bacillus belonging to the Enterobacteriaceae family. M. morganii was formerly known as Proteus morganii.
Morganella morganii is considered an unusual opportunistic pathogen, contributing to post-operative wound1, vaginal2, and urinary tract infections3. M. morganii is resistant to multiple antibiotics (carrying resistance genes blaNDM-1 and qnrD1), posing challenges to infection control.4
M. morganii can cause a variety of infections: sepsis, abscess, purple urine bag syndrome, chorioamnionitis, and cellulitis, and has a high risk profile.
Morganella morganii produces high levels of histamine5, and may contribute to histamine intolerance symptoms in some people.
References6
- 1.Chander J, Singla N, Kaistha N, Gulati N. Morganella morganii could be an important intensive care unit pathogen. Indian Journal of Critical Care Medicine. Published online July 1, 2010:154-155. doi:10.4103/0972-5229.74176
- 2.Srinivasan S, Fredricks DN. The Human Vaginal Bacterial Biota and Bacterial Vaginosis. Interdisciplinary Perspectives on Infectious Diseases. Published online 2008:1-22. doi:10.1155/2008/750479
- 3.Thomas-White K, Forster SC, Kumar N, et al. Culturing of female bladder bacteria reveals an interconnected urogenital microbiota. Nat Commun. Published online April 19, 2018. doi:10.1038/s41467-018-03968-5
- 4.Liu H, Zhu J, Hu Q, Rao X. Morganella morganii, a non-negligent opportunistic pathogen. International Journal of Infectious Diseases. Published online September 2016:10-17. doi:10.1016/j.ijid.2016.07.006
- 5.Pugin B, Barcik W, Westermann P, et al. A wide diversity of bacteria from the human gut produces and degrades biogenic amines. Microbial Ecology in Health and Disease. Published online January 1, 2017:1353881. doi:10.1080/16512235.2017.1353881
- 6.Gameiro I, Botelho T, Martins AI, Henriques R, Lapa P. Morganella morganii: A Rare Cause of Early-Onset Neonatal Sepsis. Cureus. Published online September 20, 2023. doi:10.7759/cureus.45600
| Condition type | Bacteria |
|---|---|
| Affected systems | |
| Sexually Transmissible | Yes |
| Genitourinary Incidence | |
| Age group affected |
Microbial information
| Anaerobe / Aerobe | |
|---|---|
| Gram stain | |
| Best tests to detect | |
| Pathogen of | |
| Commensal of (Can naturally inhabit, but not necessarily as a healthy addition) | |
| Optimal growth pH | |
| Conditions correlated with | |
| Cellular adherence capacities | |
| Found in healthy vaginas | |
| Biofilm-forming capacities | |
| Cellular Morphology | |
| Microbe Motility | |
| Colony Colour | |
| Substances Produced | |
| Sexually Transmissible |
What are the symptoms of Morganella morganii (Proteus morganii) in urogenital infections?
What causes Morganella morganii (Proteus morganii) in urogenital infections?
What are the risk factors associated with Morganella morganii (Proteus morganii) in urogenital infections?
- Catheter
- Hospital Stays
- Hospital stays longer than 90 days
- Immunocompromised
- Medical devices and/or implants
- Unprotected Sex
How do you diagnose Morganella morganii (Proteus morganii) in urogenital infections?
How do you treat Morganella morganii (Proteus morganii) in urogenital infections?
Treatments for Morganella morganii (Proteus morganii) in urogenital infections are only for practitioners and people who purchased the book Killing BV and Killing BV for men.
Which treatments are likely to be ineffective for Morganella morganii (Proteus morganii) in urogenital infections?
What complications are associated with Morganella morganii (Proteus morganii) in urogenital infections?
- No complications found for Morganella morganii (Proteus morganii) in urogenital infections, yet.

