Chlamydophila pneumoniae

Background

An obligate intracellular bacteria
Common cause of community-acquired pneumonia, particularly an atypical pneumonia
Most recent studies have shown that <1% of cases of community acquired penumonia are caused by chlamydia pneumoniae

Differential Diagnosis

Causes of Pneumonia

Bacteria

Gram-positive
- Streptococcus pneumoniae
- Staphylococcus aureus
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

Fungal

Parasitic

Table Overview

See Also

References

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