Pneumonia refers to lung inflammation, and often to a lung infection with fluid in the lungs. Pneumonia can be very serious, even fatal, and you need to see a doctor immediately if pneumonia is suspected. Pneumonia can be due to bacterial, viruses, fungi, or protozoa. Bacterial pneumonia is a common ...

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Introduction: Pneumonia

Pneumonia is an infection of the lungs that can cause mild to severe illness in people of all ages. Depending on the cause, it can often be treated with medicine or prevented with vaccines. However, it is still the leading ...1

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Symptoms of Pneumonia

The infection inflames your lungs' air sacs, which are called alveoli (al-VEE-uhl-eye). The air sacs may fill up with fluid or pus, causing symptoms such as a cough with phlegm (a slimy substance), fever, chills, and trouble breathing ...2

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Complications of Pneumonia

Pneumonia tends to be more serious for:

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Causes of Pneumonia

What Causes Pneumonia? Many germs can cause pneumonia. Examples include different kinds of bacteria, viruses, and, less often, fungi. Most of the time, the body filters germs out of the air that we breathe to protect the lungs from infection ...3

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Causes List for Pneumonia

Some possible causes of Pneumonia or similar disorders may include:4

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Types of Pneumonia

One lung or both? Pneumonia is sometimes categorized according to whether one or both lungs are affected. “Single pneumonia” refers to infection of a single lung; “Double pneumonia” refers to infection in both lungs. Pneumonia Categorized by Lung Region: There ...

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Types of Pneumonia

Pneumonia is named for the way in which a person gets the infection or for the germ that causes it. Community-Acquired Pneumonia Community-acquired pneumonia (CAP) occurs outside of hospitals and other health care settings. Most people get CAP ...5

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Diagnosis of Pneumonia

How Is Pneumonia Diagnosed? Pneumonia can be hard to diagnose because it may seem like a cold or the flu. You may not realize it's more serious until it lasts longer than these other conditions. Your doctor will diagnose pneumonia ...6

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Risk Factors for Pneumonia

Who Is at Risk for Pneumonia? Pneumonia can affect people of all ages. However, two age groups are at greater risk of developing pneumonia:

  • Infants who are 2 years old or younger (because their immune systems are still developing during ...
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Misdiagnosis: Pneumonia

Undiagnosed Pneumonia: Pneumonia is a very dangerous condition, especially for the young and the old. Unfortunately, it is often overlooked, or detected late, when it occurs as a complication of another respiratory illness. Infectious Respiratory Diseases: Some of the possible ...

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Treatments: Pneumonia

Treatment for pneumonia depends on its cause, how severe your symptoms are, and your age and overall health. Many people can be treated at home, often with oral antibiotics. ...Source: NHLBI (NIH)7 ...

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Prevention of Pneumonia

How Can Pneumonia Be Prevented? Pneumonia can be very serious and even life threatening. When possible, take steps to prevent the infection, especially if you're in a high-risk group. Vaccines Vaccines are available to prevent pneumococcal pneumonia and ...8

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Research for Pneumonia

Etiology of Pneumonia in the Community (EPIC) Study: The Etiology of Pneumonia in the Community (EPIC) study conducted by CDC, and three U.S. children’s hospitals,and five U.S. adult medical centers estimated the burden of community-acquired ...9

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Names and Terminology

Other Names for Pneumonia

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  1. Source: CDC: pneumonia/ 
  2. Source: NHLBI (NIH): health/ health-topics/ topics/ pnu
  3. Source: NHLBI (NIH): health/ health-topics/ topics/ pnu/ causes
  4. Source: Algorithmically Generated List
  5. Source: NHLBI (NIH): health/ health-topics/ topics/ pnu/ types
  6. Source: NHLBI (NIH): health/ health-topics/ topics/ pnu/ diagnosis
  7. Source: NHLBI (NIH): health/ health-topics/ topics/ pnu
  8. Source: NHLBI (NIH): health/ health-topics/ topics/ pnu/ prevention
  9. Source: CDC: pneumonia/ 

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Note: This site is for informational purposes only and is not medical advice. See your doctor or other qualified medical professional for all your medical needs.