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Home > Patient & Family Resources > Health Library > Mycobacterium Avium Complex
Mycobacterium avium complex (MAC) is a group of bacteria, commonly found in soil or water, that can infect people who have acquired immunodeficiency disease (AIDS). In people whose CD4+ cell count drops below 50 cells per microliter (mcL), the bacteria can spread throughout the body and cause infection almost anywhere.
There is no easy way to avoid exposure to Mycobacterium avium complex bacteria. But medicines are available that can prevent disease.
Current as of:
June 9, 2019
Medical Review:E. Gregory Thompson, MD - Internal Medicine & Adam Husney, MD - Family Medicine & Peter Shalit, MD, PhD - Internal Medicine, Infectious Disease
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