HIV (Human Immunodeficiency Virus) Infection (cont.)
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The HIV infection is caused by the human immunodeficiency virus (HIV).
After HIV is in the body, it starts to destroy CD4+ cells, which are white blood cells that help the body fight infection and disease.
HIV is spread when blood, semen, or vaginal fluids from an infected person enter another person's body, usually through sexual contact, from sharing needles when injecting drugs, or from mother to baby during birth.
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