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Updated: Jun 18, 2026

Identification of Virulence Markers of Mycobacterium abscessus for Intracellular Replication in Phagocytes
Published on: September 27, 2018
[Cutaneous abscess due to Gemella morbillorum]
Iago Villamil1, Alberto Villar, Luis A Masa
1Unidad de Hospitalización a Domicilio, Departamento de Medicina, Hospital Gil Casares, Santiago de Compostela, España. iago.villamil.cajoto@sergas.es
Abstract:
We report a cutaneous abscess due to Gemella morbillorum, a Gram positive coccus found in oropharyngeal flora, that rarely causes disease in humans. Infections associated to this agent are similar to those related to viridans streptococci. There have been reports of endovascular infections (predominantly endocarditis) and also of acute invasive infections. Few previous reports are available of cutaneous infection.
Insights
Gemella morbillorum, a Gram-positive coccus, rarely causes human disease. This report details a rare cutaneous abscess caused by this bacterium, highlighting its potential for skin infections.
Area of Science:
- Microbiology
- Infectious Diseases
- Dermatology
Background:
- Gemella morbillorum is a Gram-positive coccus residing in the oropharyngeal flora.
- Infections caused by Gemella morbillorum mimic those of viridans streptococci.
- While endovascular and acute invasive infections are documented, cutaneous manifestations are rare.
Observation:
- A case of cutaneous abscess attributed to Gemella morbillorum is presented.
- The abscess occurred on the skin, a less commonly reported site for this pathogen.
Findings:
- This study confirms Gemella morbillorum as a causative agent of cutaneous abscess.
- The clinical presentation and microbiology of this rare skin infection are detailed.
Implications:
- This case expands the spectrum of known Gemella morbillorum infections.
- Highlights the importance of considering Gemella morbillorum in the differential diagnosis of cutaneous abscesses.
- Further research into the pathogenesis of cutaneous Gemella morbillorum infections is warranted.
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