highly significantp < 0.01
Among cytokines, TNF-α distribution best fitted that of SARS-CoV-2 antibodies and HERV-W ENV protein levels with highly significant differences between CL3 and either CL1 or CL2 (Tukey’s post-hoc tests for multiple comparisons following one-way ANOVA, p < 0.01; Fig. 3C ).