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HIV Receptors
HIV Receptors The two distinct co-receptors on the surface of T cells are CXCR4 and CCR5, both requiring CD4 for the entry of the HIV virus. CCR5 is the receptor used for entry in the asymptomatic phase; during the symptomatic phase the viruses can use the CXCR4 receptor.

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Online Textbook:
HIV and AIDS: The Structure and Life Cycle of HIV

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The structure of HIV
The replication cycle of HIV

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HIV Infection
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