Interferon-γ‒inducible protein (IP)-10—also known as C-X-C motif chemokine ligand (CXCL)10—is mainly secreted by cluster of differentiation (CD)4+ T cells, CD8+ T cells, monocytes, and myeloid dendritic cells, and is elevated in multiple diseases (20, 21) as well as in HIV infection (22, 23). This evidence concerns the gene CXCL10 and HIV infectious disease.