Nonclassic and intermediate monocytes from HIV-1–infected patients are enriched for cells that express TF and P-selectin. Monocyte subsets were identified in whole blood samples from HIV-1–infected patients and HIV-1–uninfected controls. Surface expression of CX3CR1, TF, and CD62P-selectin was measured on monocyte subsets by flow cytometry. (B) Summary data of TF expression. (C) Summary data of CD62P expression. (D) Representative dot plots of TF and CD62P expression. (E) Plasma samples from all donors were thawed and levels of soluble CD62P were measured in batch by ELISA.