Fig. 7

Increased serum IFN-γ levels in patients positive for anti-CMV IgM antibodies. Serum IFN-γ levels were determined in 18 AAD patients and 11 healthy controls using sandwich ELISA (a). In b serum IFN-γ levels were compared between those patients positive for anti-CMV IgM antibodies (n = 6), with those that were negative (n = 12). Non-parametric Mann–Whitney U test was used to test for statistical differences (*P < 0.05). The bars display the mean for the whole group