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.

艾滋病毒和艾滋病 - World Health Organization (WHO)
概述 人类免疫缺陷病毒（艾滋病毒）攻击人体免疫系统。获得性免疫缺陷综合症（艾滋病）发生在感染的最晚期。 艾滋病毒以人体的白细胞为目标，削弱免疫系统。这使得感染者更容易患上结核病、感染和某些癌症等疾病。 艾滋病毒经由感染者的体液传播，包括血液、母乳、精液和阴道液体。它不 ...

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/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 ...

VIH y sida - World Health Organization (WHO)
Nota descriptiva de la OMS acerca del VIH: datos, signos y síntomas, transmisión, factores de riesgo, diagnóstico, prevención, tratamientos y respuesta de la OMS.

HIV - India - World Health Organization (WHO)
The most common route of transmission of HIV infection in India is unprotected sexual intercourse with an infected person, followed by mother to child transmission during pregnancy, childbirth and breastfeeding, sharing of contaminated needles, injecting drug use, and transfusion of contaminated blood.

WHO releases updated recommendations on HIV clinical management
The World Health Organization (WHO) has released updated recommendations on HIV clinical management providing new and revised guidance on antiretroviral therapy, management of vertical HIV transmission, and tuberculosis (TB) prevention for people living with HIV. These recommendations support an evidence-based, cost-effective approach to improving treatment outcomes, reducing HIV-related ...

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 ...

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.