MAC (Mycobacterium avium complex)

Mycobacterium avium complex (MAC) is a group of bacteria that naturally exist in the environment, such as in soil and water. While usually harmless to healthy people, MAC can cause infections, particularly in individuals with weakened immune systems, leading to lung disease or sometimes systemic infections. These infections may cause symptoms like cough, fatigue, weight loss, or fever. MAC is diagnosed through laboratory tests and treated with a combination of antibiotics over several months. Awareness and prompt treatment are important to manage infections effectively, especially in those with compromised immune defenses.