MSD Manual

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Common Opportunistic Infections Associated with AIDS

Common Opportunistic Infections Associated with AIDS




A yeast infection of the esophagus

Painful swallowing and burning in the chest

An infection of the lungs with the fungus Pneumocystis jirovecii

Difficulty breathing, cough, and fever

Infection with the parasite Toxoplasma gondii, usually in the brain

Headache, confusion, lethargy, muscle weakness (in the arms, legs, or face), and seizures

Infection of the lungs and sometimes other organs with tuberculosis bacteria

Cough, fevers, night sweats, weight loss, and chest pain

Infection of the intestine or lungs with bacteria that resemble tuberculosis bacteria

Fever, weight loss, diarrhea, and cough

Infection of the intestine with the parasite Cryptosporidium

Diarrhea, abdominal pain, and weight loss

Infection of the tissues covering the brain with the yeast Cryptococcus

Headache, fever, and confusion

Infection of the eyes or intestinal tract with cytomegalovirus

Eye: Clouding of vision or blindness

Intestinal tract: Diarrhea and weight loss

Infection with the mpox virus

Painful rash can begin in mouth or genitals then spread