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. 2015 Apr 3:557–582.e22. doi: 10.1016/B978-1-4557-3383-5.00033-6

Table 33-2.

Common Causes of Community-Acquired Pneumonia in Patients Who Require Hospitalization*

  • Streptococcus pneumoniae

  • Mycoplasma pneumoniae

  • Chlamydophila pneumoniae

  • Haemophilus influenzae

  • Staphylococcus aureus

  • Mixed infections

  • Enteric gram-negative bacilli

  • Aspiration (anaerobes)

  • Respiratory viruses

  • Legionella species

*

Organisms are listed in the general order of frequency.