Community-acquired pneumonia

Community-acquired pneumonia is a topic covered in the Diagnosaurus.

To view the entire topic, please or purchase a subscription.

Medicine Central™ is a quick-consult mobile and web resource that includes diagnosis, treatment, medications, and follow-up information on over 700 diseases and disorders, providing fast answers—anytime, anywhere. Explore these free sample topics:

Medicine Central

-- The first section of this topic is shown below --



  • Streptococcus pneumoniae (most common)
  • Haemophilus influenzae
  • Mycoplasma pneumoniae (young adults, summer & fall)
  • Chlamydia pneumoniae (young adults)
  • Staphylococcus aureus (influenza epidemics, IV drug use, bronchiectasis)
  • Neisseria meningitides
  • Moraxella catarrhalis (lung disease, elderly)
  • Klebsiella pneumoniae (alcohol, diabetes)
  • Legionella spp. (contaminated construction site, water source, or air conditioner)


  • Influenza virus
  • Respiratory syncytial virus
  • Adenovirus
  • Parainfluenza virus

Special risk factors

  • Chlamydia psittaci (psittacosis): birds
  • Coxiella burnetii (Q fever): cattle, sheep, goats; especially newborns or products of conception
  • Francisella tularensis (tularemia): tick or skinning rabbit
  • Endemic fungi (Blastomyces: Ohio & Mississippi River valleys; Coccidioides: Southwest United States or Latin America; Histoplasma: Ohio & Mississippi River valleys)
  • Sin nombre virus (hantavirus pulmonary syndrome): rodent waste, Southwest United States

-- To view the remaining sections of this topic, please or purchase a subscription --

Last updated: January 13, 2015