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kitzdeathrow t1_iwue18s wrote

>For instance, HIV uses receptors such as CCR5 and CXCR4 to enter certain kinds of white blood cells

Maybe a pedantic nitpick. But CCR5 and CXCR4 are specifically co-receptors that, in general, define which type of CD4+ T-cells the virus can infect. The CD4 receptor is the primary surface protein recognized by the HIV env protein.

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