Jul 22, 2024 · WHO fact sheet on HIV and AIDS with key facts and information on signs and symptoms, transmission, risk factors, testing and counselling, prevention, treatment and WHO response.

Mar 26, 2025 · Human immunodeficiency virus (HIV) is an infection that attacks the body’s immune system, specifically the white blood cells called CD4 cells. HIV destroys these CD4 cells, weakening a person’s immunity against opportunistic infections, such as tuberculosis and fungal infections, severe bacterial infections and some cancers.

Jul 30, 2024 · ART can reduce the level of virus to such low levels in the body that the immune system will function normally, and a person living with HIV can enjoy good health, provided they adhere to treatment and the treatment remains effective. People living with HIV are also much less likely to transmit the virus to others when treatment is working.

Jul 22, 2024 · HIV (human immunodeficiency virus) infects cells of the immune system Infection results in the progressive deterioration of the immune system, breaking down the body's ability to fend off some infections and other diseases. AIDS (acquired immune deficiency syndrome) refers to the most advanced clinical stage of HIV infection, defined by the occurrence of any of more …

Jun 5, 2020 · The virus infects protective cells of the immune system, destroying or impairing their function. As the infection progresses, the immune system becomes progressively weak and the individual becomes more susceptible to life threatening opportunistic infections. The most advanced stage of HIV infection is acquired immunodeficiency syndrome (AIDS).

Nota descriptiva de la OMS acerca del VIH: datos, signos y síntomas, transmisión, factores de riesgo, diagnóstico, prevención, tratamientos y respuesta de la OMS.

Nov 29, 2024 · The Human Immunodeficiency Virus (HIV) targets the immune system and weakens people's defence systems against infections and some types of cancer. It is transmitted through unprotected sexual intercourse (anal or vaginal), transfusion of contaminated blood, sharing of contaminated needles, and between a mother and her infant during pregnancy, …

Jul 22, 2024 · WHO fact sheet on HIV and AIDS with key facts and information on signs and symptoms, transmission, risk factors, testing and counselling, prevention, treatment and WHO response.

Since the beginning of the epidemic, 88.4 million [71.3–112.8 million] people have been infected with the HIV virus and about 42.3 million [35.7–51.1 million] people have died of HIV.

Jun 7, 2023 · People living with HIV (PLHIV) who have not achieved viral suppression through antiretroviral treatment (ART) may have a compromised immune system that leaves them vulnerable to opportunistic infections and further HIV disease progression.