Introduction: Infection that causes lung air sac to be inflamed.
Causes: by bacteria and viruses, Inhaling food, drink, vomit etc.
Symptoms: Shortness of breath, chest pain,fatigue, coughing (with phlegm), etc.
Prevention: reduce its occurrence by stop smoking, ensure hand hygiene etc.
When to see a Doctor: if you experience any of the symptoms esp. persistent cough.
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