About HIV | HIV | CDC
HIV (human immunodeficiency virus) is a virus that attacks the body's immune system. Without treatment, it can lead to AIDS (acquired immunodeficiency syndrome). There is currently no effective cure. Once people get HIV, they have it for life. But proper medical care can control the virus.

HIV - Wikipedia
HIV-1 is the virus that was initially discovered and termed both lymphadenopathy associated virus (LAV) and human T-lymphotropic virus 3 (HTLV-III). HIV-1 is more virulent and more infective than HIV-2, [20] and is the cause of the majority of HIV infections globally.

HIV/AIDS - Symptoms and causes - Mayo Clinic
HIV makes the body less able to clear out infections and diseases. If HIV infection is not treated, over time it can cause an illness called acquired immunodeficiency syndrome (AIDS). HIV spreads through contact with some body fluids.

What Are HIV and AIDS? - HIV.gov
HIV is a virus that can make it harder for your body to fight other infections and diseases. If HIV is left untreated, it can lead to AIDS, a late stage of infection that happens when the immune system is badly damaged by the virus.

HIV | CDC - Centers for Disease Control and Prevention
Learn how HIV is transmitted, how to protect yourself and others, and how to live well with HIV. Also learn how HIV impact various US populations. Find information about HIV for consumers, providers, and public health partners.

HIV and AIDS Resources | HIV.gov
HIV.gov is the US Government’s gateway to federal HIV policies, programs, and resources to end the HIV epidemic.

HIV/AIDS - Wikipedia
HIV is spread primarily by unprotected sex (including anal, oral, and vaginal sex), contaminated hypodermic needles or blood transfusions, and from mother to child during pregnancy, delivery, or breastfeeding. [19] . Some bodily fluids, such as saliva, sweat, and tears, do not transmit the virus. [20] .

Understanding HIV - HIVinfo
Learn more about HIV and AIDS using the collection of fact sheets, infographics, HIV-related terms and awareness day pages. What Do My Lab Results Mean? This section presents a collection of fact sheets and infographics.

HIV/AIDS: Facts, Statistics, Symptoms, Causes, Diagnosis, and Treatments
HIV is spread throughout the world, but sub-Saharan Africa (the southern part) has the greatest number of people who are infected. The World Health Organization and the United Nations UNAIDS...

HIV/AIDS Fact Sheets | NIH - HIVinfo
View updated fact sheets about HIV, including HIV basics, testing, prevention, treatment, related health concerns, and living with HIV.