Infections can occur more easily or become more severe when the immune system is weakened by HIV, with resources related to prevention, symptoms, and treatment.

Basics

Learn how opportunistic infections can affect individuals with HIV.

Candidiasis

Candidiasis (or thrush) is a fungal infection of the mouth, esophagus and/or vagina. Learn more…

Cryptosporidiosis

Cryptosporidiosis (crypto) is an illness caused by a parasite that lives in soil, food, and…

Cytomegalovirus (CMV)

In individuals with HIV who have low CD4 counts, cytomegalovirus infection can be extremely…

Flu

Individuals with HIV are at higher risk of developing serious flu-related complications,…

Hepatitis

Hepatitis B and hepatitis C are liver infections caused by a virus. Find links to resources on…

Mycobacterium Avium Complex (MAC)

Mycobacterium avium complex usually causes illness only in individuals with very weakened…

Pneumocystis Pneumonia (PCP)

Pneumocystis jirovecii is a fungus that lives in the lungs of many people. Most people'…

Progressive Multifocal Leukoencephalopathy (PML)

Progressive multifocal leukoencephalopathy is a rare infection that damages the material (myelin…

Toxoplasmosis

Toxoplasmosis is a disease caused by the parasite Toxoplasma gondii. Learn more about…

Tuberculosis (TB)

HIV weakens the immune system, increasing the risk of tuberculosis in individuals with HIV.…

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