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Asthma is not a virus or a bacteria. It is a chronic lung condition that is characterized by airway constriction and inflammation. Asthma is not a contagious disease.

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15y ago
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10y ago

It can be caused by any of these, or more particularly by inhalation of smoke such as tobacco smoke. Emphysema (COPD) is the destruction of the alveoli in the lungs.

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7y ago

No, not at all.

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12y ago

Bacterial

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Q: Is emphysema caused by a virus bacteria or fungus?
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