Atypical pneumonia
Background
- Atypical bugs: chlamydia pneumoniae, legionella pneumophila, mycoplasma pneumoniae
Clinical Features
- Atypical presentation: more likely to have extra-pulmonary symptoms, i.e. arthralgias, fever, malaise, headache
Differential Diagnosis
Causes of Pneumonia
Bacteria
- Gram-positive
- Gram-negative
- Atypical pneumonia
- Chlamydophila pneumoniae
- Chlamydophila psittaci
- Mycoplasma pneumoniae
- Coxiella burnetti
- Legionella pneumophila
Viral
- Common
- Influenza
- Respiratory syncytial virus
- Parainfluenza
- Rarer
- Adenovirus
- Metapneumovirus
- Severe acute respiratory syndrome (SARS)
- Middle east respiratory syndrome coronavirus (MERS)
- 2019-nCoV (COVID-19)
- Cause other diseases, but sometimes cause pneumonia
- Herpes simplex virus
- Varicella-zoster (VZV)
- Measles
- Rubella
- Cytomegalovirus
- Smallpox
- Dengue
Evaluation
Management
- Macrolide antibiotic, e.g. azithromycin
Disposition
See Also
External Links
References
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