HIV and AIDS - World Health Organization (WHO)
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.

HIV - Global - World Health Organization (WHO)
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.

HIV and AIDS - World Health Organization (WHO)
For people living with HIV who are not diagnosed or taking ART, signs of HIV-related illness may develop within 5–10 years, although it can be sooner. The time between HIV transmission and an AIDS diagnosis is usually 10-15 years, but sometimes longer. There is a very small number of people who have managed to control the HIV infection without ART and are called ‘elite-controllers’. This ...

HIV - World Health Organization (WHO)
Since the beginning of the epidemic, 91.4 million [73.4–116.4 million] people have been infected with the HIV virus and about 44.1 million [37.6–53.4 million] people have died from HIV-related causes. Globally, 40.8 million [37.0–45.6 million] people were living with HIV at the end of 2024. An estimated 0.7% [0.6-0.8%] of adults aged 15–49 years worldwide are living with HIV, although ...

HIV - World Health Organization (WHO)
HIV remains one of the world's most significant public health challenges, particularly in low- and middle-income countries. As a result of advances in access to antiretroviral therapy (ART), HIV-positive people now live longer and healthier lives. In addition, it has been confirmed that ART prevents onward transmission of HIV.

HIV/AIDS WPRO - World Health Organization (WHO)
The Human Immunodeficiency Virus (HIV) targets the immune system and weakens people's defense 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, or between a mother and her infant during pregnancy, childbirth and breastfeeding, if the mother is not ...

Global HIV Programme - World Health Organization (WHO)
Latest update on the global and regional HIV estimates, people receiving antiretroviral therapy, incidence among key populations, progress towards international targets, HIV testing and care cascades, and updates on HIV policies uptake.

WHO released updated guideline on HIV service delivery
WHO has released an updated guideline to support integrated HIV service delivery, promote long-term adherence to antiretroviral therapy (ART), and improve the overall health and well-being of people living with HIV. In line with WHO’s commitment to person-centred care, these recommendations reflect updated evidence, and the broader needs of individuals affected by HIV.

Global HIV Programme - World Health Organization (WHO)
The WHO Department of Global HIV, Hepatitis and Sexually Transmitted Infections Programmes leads the development and implementation of the global health sector strategy on the elimination of HIV as a public health threat.

Redefining the HIV response in Africa through local production of ...
This milestone reflects ongoing collaboration between WHO and the Global Fund to support essential HIV services, through the NextGen market shaping approach. “The procurement of the African-manufactured first-line HIV treatment by the Global Fund for Mozambique is a great milestone towards strengthening supply chain systems in Africa.