In Lee CP’s report [5], plasma TARC levels were significantly higher in acute KD before IVIG treatment, but they found that plasma TARC/CCL17 levels of pre-IVIG, post-IVIG, and subacute stages did not differ significantly in the occurrence of CAL, coronary artery aneurysm (CAA), and the responsiveness in KD. Here, CCL17 is linked to coronary aneurysm.