Gemella morbillorum: an underestimated aetiology of central nervous system infection?

Paolo Benedetti1, Mario Rassu2, Michele Branscombe3

  • 1Unità Operativa di Malattie Infettive e Tropicali, Ospedale S. Bortolo, Viale F. Rodolfi 37, 36100 Vicenza, Italy.

Insights

Gemella morbillorum can cause serious central nervous system (CNS) infections, including cerebellar abscess and cerebritis. This case highlights the potential for biphasic illness and CNS persistence despite antibiotic treatment, suggesting an emerging threat.

Area of Science:

  • Neurology
  • Infectious Diseases
  • Microbiology

Background:

  • Central nervous system (CNS) infections require prompt diagnosis and treatment.
  • Gemella morbillorum is a bacterium increasingly recognized as a potential pathogen.

Observation:

  • A patient presented with a biphasic clinical course suggestive of CNS infection.
  • The infection involved both the cerebellum and cerebral parenchyma, manifesting as abscess and diffuse cerebritis.
  • Initial antibiotic therapy did not prevent the progression to suppuration within the CNS.

Findings:

  • Gemella morbillorum was identified as the causative agent of the cerebellar abscess and diffuse cerebritis.
  • The biphasic clinical presentation suggests a possible latent survival of Gemella morbillorum within the CNS.
  • This case adds to the growing body of evidence for Gemella morbillorum as an emerging cause of CNS infections.

Implications:

  • Clinicians should consider Gemella morbillorum in the differential diagnosis of CNS infections, particularly those with unusual or biphasic courses.
  • Further research is needed to understand the pathogenesis and optimal treatment strategies for CNS infections caused by Gemella morbillorum.
  • The findings underscore the importance of vigilant monitoring and potential for CNS involvement in Gemella morbillorum infections.

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