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HIV attaches and takes over Immune system cells called CD4. These cells locate Infections in the Body and coordinate their destruction. Without medication the body cant replace CD4 cells as fast as they are lost. As the CD4 level drops,infection can enter the body with less resistance and replicate and spread,thus doing damage as the body struggles to locate the infection. When the CD4 level falls below 200 a person is said to have AIDS and without treatment death will come in an average of 9 months or so.
Wiki User
∙ 12y ago
Wiki User
∙ 12y agoBecause the helper t cells coordinate the immune system and activates the B cells and killer T cells.
Wiki User
∙ 11y agoHIV infects mainly T cells because these cells have a receptor on the outside of their plasma membrane; these T cell receptors are used by medical professionals to identify these cells.
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