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A 21-year-old member asked:

What three things can cause the lung infection pneumonia?

2 doctor answers3 doctors weighed in
Dr. Carlo Hatem
Pulmonary Critical Care 25 years experience
Bacteria, viruses,: Bacteria, viruses and fungi cause pneumonia. That is to say, there are hundreds of thousands of causes of pneumonia if not more.
Dr. Michael Depietro
Pulmonary Critical Care 35 years experience
Diff germs: Pneumonia ( lung infection) occurs when some type of microbe( that is "germ") gets into the lungs. Germs include bacteria, viruses or fungi. Germs can be "aspirated" (get into the lungs when oral secretions with the bacteria get into the airway) or airborne germs ( fungus or virus) get inhaled. Some underlying lung problems weaken defenses and increase the risk for an infection. (copd, aids etc.

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A 40-year-old member asked:

Lung infection what is it and how is it different from pneumonia?

1 doctor answer1 doctor weighed in
Dr. Michael Depietro
Pulmonary Critical Care 35 years experience
Not different: Pneumonia is a lung infection. A lung infection confined to just the larger air tubes in the lungs would be called bronchitis, one that spreads to the lower airway and air sacs is pneumonia.

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Last updated Oct 25, 2016
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