Pneumonia is a lung infection that can be caused by many different germs, including bacteria, viruses, and fungi.
This article discusses pneumonia that occurs in a person whose ability to fight infection is greatly reduced because their immune system is weakened and not working properly. Such disease is referred to as "pneumonia in an immunocompromised host."
(previously called Pneumocystis carinii
Pneumonia - cytomegalovirus
Pneumonia in immunodeficient patient; Pneumonia - immunocompromised host
Causes, incidence, and risk factors
People whose immune system is not working well are less able to fight off germs. Because of this state, they are more likely to become infected by g...
Annual vaccinations for influenza virus are recommended for many groups of people. I strongly suggest that all people over the age of 65, people who have any chronic condition that would make an illness such as influenza more dangerous, those who are essential to the operation of their business, and all health care professionals be vaccinated. If you have a chronic lung, kidney, blood, immunity or cardiac condition, the misery of the flu will be worse than if you are healthy. For anyone that has actually had influenza, the idea of having it again is not pleasant. Influenza is not the same as a cold. Each year, many thousands of people die of influenza. Unfortunately, we don't yet have a vaccination for the common cold, or the 24 or 48-hour gastrointestinal virus, but they are not often seen as causes of death. A pneumonia vaccination fortunately is needed less often than an influenza vaccination. The shot lasts from 8 to 12 years in most cases. If you are over age 6...
Introduction Pneumonia is inflammation of the lung that is most often caused by infection with bacteria, viruses, or other organisms. Occasionally, inhaled chemicals that irritate the lungs can cause pneumonia. Healthy people can usually fight off pneumonia infections. However, people who are sick, including those who are recovering from the flu (influenza) or an upper respiratory illness, have a weakened immune system. This makes it easier for bacteria to grow in their lungs. It is one of the top 10 causes of death in the U.S. and the 6th leading cause of death in the elderly (65 and older). Defining Pneumonia by Location in the Lung Pneumonia may be defined according to its location in the lung: Lobar pneumonia occurs in one part, or lobe, of the lung. Bronchopneumonia tends to be scattered throughout the lung. Defining Pneumonia by Origin of Infection Doctors often classify pneumonia based on where the disease is contracted. This helps predict which organisms are most likely responsible f...
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