What Is MAC Lung Disease? MAC lung disease is a type of long-term (chronic) infection that affects your lungs. The Mycobacterium avium complex (MAC) group of microbes causes MAC lung …

MAC is one of a large group of nontuberculous mycobacteria (NTM), and the most common cause of NTM lung disease in the U.S. MAC organisms are common in soil and water and are easily inhaled …

The pathogen Mycobacterium avium complex (MAC) is the most common cause of nontuberculous mycobacterial pulmonary disease worldwide. The decision to initiate long-term antibiotic treatment …

Jan 16, 2025 · You’re more likely to have MAC if you have other health conditions affecting your lungs or immune system. But anyone can get it.

Dec 1, 2025 · Treatment of nontuberculous mycobacterial (NTM) infection of the lung is dependent upon a number of factors, including the species of the infecting organism. Members of …

Disseminated MAC disease frequently occurs in AIDS patients due to a very low immune system but is a different type of disease than chronic lung MAC. The MAC disease in AIDS is widely …

MAC is the most frequent cause of Nontuberculous Mycobacteria (NTM) lung disease in the United States. Unlike tuberculosis, MAC is not spread person-to-person, but it establishes a persistent …

Jan 8, 2026 · Key Takeaways MAC is found in water, soil, or aerosols and is not contagious. People with lung diseases can become sick when exposed to MAC. Some cases can be life-threatening. …

Mycobacterium Avium Complex (MAC) is caused by a bacterial lung infection. Read more to learn how it's contracted, who's at risk, and treatment options.

Dec 2, 2025 · Get the facts about mycobacterium avium complex (MAC) treatments, which include medication and surgery.