What Is Lung Disease?
3. Transmission
Viral infections like the flu are easily transmitted through the air and by way of contaminated surfaces like doorknobs and countertops. These infections can be as mild as a cold or severe as the flu, but they can develop into lower respiratory infections if they are not treated early.
Diseases like asthma, emphysema, and lung cancer cannot be transmitted from person to person. These conditions are caused by something that goes wrong with the person’s immune system or airway physiology, and they are not contagious.
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