COPD

Emphysema-like disease and HIV
Emphysema is an incurable condition that occurs when the walls between the air sacs in the lung lose their ability to stretch and recoil, causing shortness of breath. Some HIV patients develop a condition called emphysema-like disease, which causes similar symptoms. The main difference between these two conditions is that abnormal masses in the lungs, called cystic lesions, cause symptoms of emphysema-like disease.

Chronic obstructive pulmonary disease (COPD) - from Natural Standard
Chronic obstructive pulmonary disease (COPD) is a type of lung disease that involves damage or obstruction to the airways of the lungs, making it difficult to breathe. COPD is an overall term referring to a group of chronic lung conditions, most commonly including chronic bronchitis and emphysema, and possibly asthma or asthmatic bronchitis. While chronic bronchitis and emphysema may occur separately, it is common for patients to have both diseases at the same time.

Adenovirus
Adenoviruses are medium-sized (90 to 100 nanometers) viruses that contain double-stranded deoxyribonucleic acid (DNA). DNA consists of two strands of a series of nucleotides shaped like a twisted ladder. This structure is referred to as a double helix, and it contains an individual's genetic code.

Emphysema - from Natural Standard
Emphysema is a chronic (long lasting) condition in which the walls between the alveoli (air sacs) within the lung lose their ability to stretch and recoil, causing shortness of breath.

Alpha-1 antitrypsin deficiency
Alpha-1 antitrypsin deficiency is an inherited genetic disease in which tissue in the liver or lungs may become damaged, which prevents them from working properly. The first symptoms of alpha-1 antitrypsin deficiency usually occur between the ages of 20 and 50, but some infants or children may be affected with the disease as well. About one in 3,000 to 5,000 people are affected with alpha-1 antitrypsin deficiency.