The correct answer would be, Emphysema.
The doctor will make a diagnosis about John that he has Emphysema.
Explanation:
Emphysema is a type of COPD. COPD stands for Chronic Obstructive Pulmonary Disease. In this disease, the air sacs in the lungs gets damaged. When the lungs don't get the required oxygen, your body gets deprived of it which makes breathing difficult for you.
Due to this Emphysema, the person can suffer from chronic cough and can has extreme problem in breathing.
Smoking gradually destroys the lungs and due to the lungs disease, the whole body suffers because lungs are the organs which are responsible for the exchange of oxygen and carbon dioxide between the breathing air and our blood.
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The agency monitors the need for vaccinations for infectios disease is the Center for Disease Control or CDC
