Concerning beta-retroviruses, HERV-K/HML elements were expressed in PBMCs as previously observed in healthy subjects [36, 41], in prostate cancer [37], and Henoch-Schönlein purpura [63] patients.Notably, centromeric HML2 elements seemed to be relatively more represented than the other HML-2 elements, as observed in the blood of HIV-infected patients [64]. Here, CLEC10A is linked to Henoch-Schoenlein purpura.