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Kocuria rhizophila Infection: A Case Report and Literature Review

Raquel Azevedo1, Ana Luísa Graça1, Glória Gonçalves2

  • 1Infectious Diseases, Unidade Local de Saúde de Braga, Braga, PRT.

Cureus
|July 28, 2025
PubMed

Insights

Kocuria rhizophila, a bacterium, can cause infections even in healthy individuals, particularly those with medical devices. This case highlights the need for clinical awareness of Kocuria species as an emerging pathogen.

Area of Science:

  • Microbiology
  • Infectious Diseases

Background:

  • Kocuria species, once deemed opportunistic, are increasingly recognized as causative agents of infection.
  • These bacteria are frequently linked to device-related infections, especially in immunocompromised individuals.

Observation:

  • A 54-year-old immunocompetent woman experienced recurrent central venous catheter-related infections.
  • Treatment with amoxicillin and clavulanic acid was followed by isolation of Kocuria rhizophila from blood cultures and catheter tips.

Findings:

  • Kocuria rhizophila demonstrated sensitivity to all tested antibiotics.
  • Complete resolution was achieved through catheter removal and antibiotic therapy.

Implications:

  • This case underscores the potential for Kocuria rhizophila to cause infection in immunocompetent hosts with vascular catheters.
  • Increased clinical vigilance and further research are crucial for accurate diagnosis and management of Kocuria spp. infections.

Keywords:
bloodstream infectionsdevice-related infectionsemergent pathogenkocuria rizophilaopportunistic bacteria

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