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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.

Symptoms include:

There is no easy way to avoid exposure to Mycobacterium avium complex bacteria. But medicines are available that can prevent disease.

ByHealthwise Staff
Primary Medical ReviewerE. Gregory Thompson, MD - Internal Medicine
Specialist Medical ReviewerPeter Shalit, MD, PhD - Internal Medicine
Last RevisedApril 5, 2012

WebMD Medical Reference from Healthwise

Last Updated: April 05, 2012
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