In people with
impaired immune systems, pneumonia may be caused by
other organisms, including some forms of fungi, such as Pneumocystis jiroveci (formally called Pneumocystis carinii). This fungus frequently causes
pneumonia in people who have AIDS. Some doctors may
HIV test if they think that Pneumocystis jiroveci is causing the pneumonia.
Recommended Related to Lung Disease/Respiratory Problems
Doctors may classify lung conditions as obstructive lung disease or restrictive lung disease. Obstructive lung diseases include conditions that make it hard to exhale all the air in the lungs. People with restrictive lung disease have difficulty fully expanding their lungs with air.
Obstructive and restrictive lung disease share the same main symptom: shortness of breath with exertion.
If you breathe large amounts
of food, gastric juices from the stomach, or vomit into the lungs (aspiration pneumonia). This can happen when you have had a medical condition that
affects your ability to swallow, such as a
A healthy person's nose and throat often contain bacteria
or viruses that cause pneumonia. Pneumonia can develop when these organisms
spread to your lungs while your lungs are more likely to be infected. Examples of times when this can happen are during or soon after a cold or if you have a long-term (chronic) illness, such
chronic obstructive pulmonary disease (COPD).
You can get pneumonia in your daily life, such as at school or work
(community-associated pneumonia) or when you are in a hospital or nursing home
(healthcare-associated pneumonia). Treatment may differ
in healthcare-associated pneumonia, because bacteria causing the infection in
hospitals may be different from those causing it in the community. This topic
focuses on community-associated pneumonia.
WebMD Medical Reference from Healthwise
March 17, 2011
This information is not intended to replace the advice of a doctor.
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