MBL2 and HIV-1 infection: This level of plasma MBL was found more frequently among HIV-1 infected 14% (27 of 196, 95% CI 8.4–18.2), compared with HIV-1 uninfected 6% (10 of 181, 95% CI 2.7–9.9) (χ2 = 7.24, p = 0.007), indicating a possible role of MBL deficiency in HIV-1 infection.