The symptoms of Mycobacterium avium-intracellulare disease include night sweats, fever, weight loss, fatigue, diarrhea and abdominal pain, states AIDSinfo, a service of the National Institutes of Health. The symptoms are similar to those of lung infections and usually develop slowly.
Mycobacterium avium-intracellulare disease is an infection caused by two related bacteria, Mycobacterium intracellulare and Mycobacterium avium, says AIDSinfo. These bacteria can be found in household dust, drinking water and dirt. People with a weak immune system have higher chances of getting the disease due to these bacteria. Treatment for MAI involves the use of strong antibiotics and may last for a year or two, says the American Lung Association.