Results on the parent questionnaire CCC-2, measuring the child's pragmatic skills, showed significant differences between groups (cCMV infection and Cx26) on the IGK/total raw score (Z = −2.28, p = 0.02, r = 0.57), and on two subscales; Initiatives (Z = −2.40, p = 0.02, r = 0.60), and Use of context (Z = −2.87, p = 0.002, r = 0.72) (Figures 4, 5). This evidence concerns the gene GJB2 and infection.