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Mixed pulmonary infection with Nocardia, Candida, methicillin-resistant Staphylococcus aureus, and group D

J Vassallo1, A C Galizia, P Cuschieri

  • 1St Lukes Hospital, Malta.

Insights

A 67-year-old man with ulcerative colitis developed severe pneumonia from multiple pathogens, including Nocardia and MRSA. Aggressive antimicrobial treatment led to a positive patient outcome.

Area of Science:

  • Infectious Diseases
  • Immunocompromised Hosts
  • Pulmonology

Background:

  • Ulcerative colitis (UC) is an inflammatory bowel disease often treated with immunosuppressive medications.
  • Prednisolone and azathioprine are common immunosuppressants used in UC management.
  • Immunosuppression increases susceptibility to opportunistic infections.

Observation:

  • A 67-year-old male patient with UC on prednisolone and azathioprine presented with severe pneumonia.
  • The pneumonia was caused by a polymicrobial infection.
  • Identified pathogens included Nocardia otitidis caviarum, methicillin-resistant Staphylococcus aureus (MRSA), group D Streptococcus, and Candida albicans.

Findings:

  • The patient experienced a severe, life-threatening pneumonia.
  • The causative agents represented a diverse range of bacteria and fungi.
  • Prompt and aggressive antimicrobial therapy was initiated.

Implications:

  • This case highlights the risk of severe, polymicrobial pneumonia in immunosuppressed patients.
  • Effective management requires broad-spectrum antimicrobial coverage targeting diverse pathogens.
  • Early recognition and aggressive treatment are crucial for favorable outcomes in immunocompromised individuals with severe infections.

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