HIV

HIV, or human immunodeficiency virus, is the virus that causes acquired immune deficiency syndrome (AIDS). HIV attacks the immune system by entering and destroying CD4+ T cells, a type of white blood cell that is vital to fighting off infection. The destruction of these cells leaves people with HIV vulnerable to other pathogens and complications. NIAID supports a comprehensive HIV research program that provides valuable scientific information about the basic biology of HIV and the immune response to the virus, while developing novel approaches for diagnosing, preventing, and treating HIV. 

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