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What are signs of pneumonia?

ANSWER

Pneumonia is an infection in one or both lungs, caused by bacteria or viruses. It irritates the air sacs in your lungs, and they fill up with fluid. Signs that you may have it include breathing trouble, fever, chills, and a cough with mucus. Pneumonia can make you feel very tired.

SOURCES:

Merck Manual Consumer Version: “Shortness of Breath.”

NIH National Heart, Lung, and Blood Institute: “What Is Asthma?”

American Thoracic Society Patient Information Series: “Breathlessness.”

National Institute on Aging, Age Page: “Understanding Lung Problems—Make Each Breath Count.”

Mayo Clinic: “Pulmonary Embolism.”

Mayo Clinic: “Interstitial Lung Disease.”

Pulmonary Fibrosis Foundation: “About PF.”

Reviewed by Nayana Ambardekar on August 12, 2018

SOURCES:

Merck Manual Consumer Version: “Shortness of Breath.”

NIH National Heart, Lung, and Blood Institute: “What Is Asthma?”

American Thoracic Society Patient Information Series: “Breathlessness.”

National Institute on Aging, Age Page: “Understanding Lung Problems—Make Each Breath Count.”

Mayo Clinic: “Pulmonary Embolism.”

Mayo Clinic: “Interstitial Lung Disease.”

Pulmonary Fibrosis Foundation: “About PF.”

Reviewed by Nayana Ambardekar on August 12, 2018

NEXT QUESTION:

What are signs of pulmonary embolism?

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THIS TOOL DOES NOT PROVIDE MEDICAL ADVICE. It is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health. Never ignore professional medical advice in seeking treatment because of something you have read on the WebMD Site. If you think you may have a medical emergency, immediately call your doctor or dial 911.

    This tool does not provide medical advice. See additional information.