Alpha-1 Antitrypsin Deficiency

Young Asian nurse with stethoscope shows tablet to older Black woman. Young Asian nurse with stethoscope shows tablet to older Black woman.

Alpha-1 antitrypsin (AAT) deficiency is a rare genetic disorder that is passed on in families and can affect the lungs, liver and/or skin. When this condition affects the lungs, it causes COPD (chronic obstructive pulmonary disease).

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