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Pneumonia

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Pneumonia

Pneumonia is a lung infection that can make you very sick. You may cough, run a fever, and have a hard time breathing. It can usually be treated at home, but some people need to go to the hospital.

Pneumonia can be caused by bacteria or a virus. Antibiotics are used to treat pneumonia caused by bacteria.

Current as of: May 1, 2026

Author: WebMD Ignite Staff

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This information does not replace the advice of a doctor. WebMD Ignite, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.

NOTICE: This health information was not created by Columbia University Irving Medical Center and may not necessarily reflect specific CUIMC practices. For medical advice to your personal condition, please consult your doctor. Medical advice disclaimer.