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The Human Immunodeficiency Virus (HIV) is a single-stranded RNA virus which reproduces in human CD4-positive cells, which are primarily T-helper lymphocytes and macrophages. HIV is the causative pathogen of Acquired Immunodeficiency Syndrome (AIDS).

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Why human body cannot defend against HIV?

These are the cells the HIV infects. Antibodies bond to the HIV virus and try to neutralize them before they can infect more cells. … When a T-cell becomes infected with HIV, the virus takes over and causes it to start replicating more HIV. This eventually causes the T-cell to die. …
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