CD4 and HIV infectious disease: To determine if there are any immunoreactivity differences between salivary MUC5B and MUC7 mucins from HIV negative and HIV positive individuals towards the same antibodies as the result of the HIV infection, salivary MUC5B and MUC7 mucins from HIV positive individuals with different CD4 counts (< 200, 200-400 and > 400) were coated in an ELISA plate alongside the salivary MUC5B and MUC7 from HIV negative individuals and probed with anti-MUC5B and anti-MUC7 polyclonal antibodies (Figure 4).