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Adult severe community-acquired pneumonia with bloodstream infection caused by ψUSA 300: A case report

Shinichi Morimoto1, Mituhiro Kamada2, Yuka Motomura3

  • 1Department of Emergency and Critical Care Medicine, Faculty of Medicine, Fukuoka University, Fukuoka 814-0180, Japan.

Diagnostic Microbiology and Infectious Disease
|November 30, 2024
PubMed

Insights

This study details a fatal case of community-acquired pneumonia and bloodstream infection caused by a novel methicillin-resistant Staphylococcus aureus (MRSA) strain, designated ψUSA300. This unique MRSA strain, positive for the Panton-Valentine leukocidin (PVL) gene, led to a fatal outcome despite intensive treatment.

Area of Science:

  • Infectious Diseases
  • Microbiology
  • Genetics

Background:

  • Community-acquired pneumonia (CAP) can be severe and life-threatening.
  • Methicillin-resistant Staphylococcus aureus (MRSA) is a significant pathogen causing both hospital-acquired and community-acquired infections.
  • Certain MRSA strains, like USA300, are associated with severe disease due to specific virulence factors.
Keywords:
Antimicrobial treatmentCommunity-acquired methicillin-resistant Staphylococcus aureusExtracorporeal membrane oxygenationPanton–Valentine leucocidin geneψUSA300 strain

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