HIV is an abbreviation for human immunodeficiency virus, a lentivirus that causes acquired immunodeficiency syndrome (AIDS), which is a disease that gradually damages the body's immune system, and patients eventually die from various pathogen infections and cancer. In the absence of treatment, HIV-infected patients typically have a survival time of 9-11 years. HIV is a sexually transmitted virus that can be transmitted through contact with or transfer of the blood or body fluids such as semen of infected people. In addition, the virus can also be transmitted from infected mothers to newborns during childbirth or lactation.
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