Viral Tropism

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Synonym(s)
Tropism
When HIV selectively attaches to a particular coreceptor on the surface of a host CD4 cell. HIV can attach to either the CCR5 coreceptor (R5-tropic) or the CXCR4 coreceptor (X4-tropic) or both (dual-tropic).
Related Term(s)
Dual-Tropic Virus
R5-Tropic Virus
X4-Tropic Virus
Image(s): (Click to enlarge)
Ways in which an HIV virion can attach to a CD4 cell

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