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Community Acquired Pneumonia (CAP)
Microbiology

Microbiology

Likely Pathogens

Respiratory viruses

Two thirds of all identifiable causes of CAP

MRSA
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  • Uncommon cause of CAP
  • Risk factors: prior influenza, presence of cavitary disease and/or empyema, prior MRSA infection (particularly respiratory infection), known colonization

P. aeruginosa
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  • Uncommon cause of CAP
  • Risk factors: recent hospitalization with antibiotic use, known colonization, underlying structural lung disease