Mycobacterium avium complex

Mycobacterium avium complex (MAC) refers to a group of bacteria commonly found in the environment, including soil and water. In healthy individuals, these bacteria usually do not cause any problems. However, in people with weakened immune systems, such as those with HIV/AIDS or other conditions, MAC can lead to lung infections or other illnesses. Symptoms may include coughing, fatigue, weight loss, and fever. Diagnosis often involves tests to identify the bacteria, and treatment typically includes antibiotics over an extended period. Prevention focuses on reducing exposure to contaminated sources, especially for vulnerable populations.