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What is pneumonia?

ANSWER

Pneumonia is a lung infection that occurs in tiny air sacs in your lungs called alveoli. It can be mild, but sometimes serious, especially for the very young, adults 65 or older, and people with weaker immune systems.

SOURCES:

Mayo Clinic: “Bronchitis,” “Pneumonia.”

American Lung Association: “Learn About Pneumonia,” “Acute Bronchitis Symptoms, Causes, and Risk Factors,” “Pneumonia Symptoms, Causes, and Risk Factors,” “Diagnosing and Treating Pneumonia.”

FamilyDoctor.org: “Acute Bronchitis.”

Harvard Health Publications, Harvard Medical School: “Acute Bronchitis.”

NIH, National Heart, Lung, and Blood Institute: “Explore Pneumonia.”

CDC: “Get Smart: Know When Antibiotics Work.”

National Health Service (U.K.): “Bronchitis.”

Reviewed by Carol DerSarkissian on December 23, 2018

SOURCES:

Mayo Clinic: “Bronchitis,” “Pneumonia.”

American Lung Association: “Learn About Pneumonia,” “Acute Bronchitis Symptoms, Causes, and Risk Factors,” “Pneumonia Symptoms, Causes, and Risk Factors,” “Diagnosing and Treating Pneumonia.”

FamilyDoctor.org: “Acute Bronchitis.”

Harvard Health Publications, Harvard Medical School: “Acute Bronchitis.”

NIH, National Heart, Lung, and Blood Institute: “Explore Pneumonia.”

CDC: “Get Smart: Know When Antibiotics Work.”

National Health Service (U.K.): “Bronchitis.”

Reviewed by Carol DerSarkissian on December 23, 2018

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How long does a cough from acute bronchitis last?

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