An acute illness affecting the lungs usually presenting with fever, cough, and rapid and difficult breathing with a new or worsening pulmonary infiltrate on a chest radiograph
Mild cases:
Severe cases (to guide antimicrobial treatment):
No test clearly differentiates viral or bacterial CAP
Consider: Full blood count and C-reactive protein
Note: tests depend on availability and clinical severity (e.g. blood gases will only be done in severe cases)
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