The 95% confidence intervals of the differences between the mean titers of IgG, IgG1, and IgG2 obtained by ELISA, considering the variables of clinical states and DTH results together. The vertical dotted line defines the absence of differences between the means evaluated. ^*, p = 0.0105; ^**(IgG SCG DTH⁽⁺⁾ – IgG1 SCG DTH⁽⁺⁾), p = 0.0054; ^**(IgG SCG DTH⁽⁻⁾) – IgG2 SCG DTH⁽⁻⁾), p = 0.0012; ^**(IgG1 SCG DTH⁽⁻⁾ – IgG1 DCG DTH⁽⁻⁾), p = 0.0031; ^***(IgG1 SCG DTH⁽⁺⁾ – IgG2 SCG DTH⁽⁺⁾), p = 0.0004; ^***(IgG1 DCG DTH⁽⁻⁾ – IgG2 DCG DTH⁽⁻⁾), p = 0.0003; ^***(IgG SCG DTH⁽⁺⁾ – IgG DCG DTH⁽⁻⁾), p = 0.0001; ^****, p < 0.0001.