Since we could not observe any difference in IFNAR2b/c surface expression following HIV-infection (Fig 1B), we next analyzed the expression of soluble IFNAR2 (sIFNAR2a) in the supernatant of mock-treated and HIV-infected LPMCs at days 1, 4 and 7 post infection via ELISA (Fig 2A). Here, IFNAR2 is linked to infection.