GWAS in KD have identified a number of susceptibility SNPs/genes that contribute to the risk of KD (HLA, FCGR2A, SLC8A1, ZFHX3, NMNAT2, BLK, DAB1, HCP5, COPB2, ERAP1, NAALADL2, CD40, NFKBIL1, IGHV, EBF2, CACNB2, LTA, and LEF1) (5–16) to the risk of cardiovascular disease in KD (TIAM1, NEBL, PLCB4/PLCB1, TUBA3C, SLC8A1, PELI1, KCNN2, TIFAB, and AGT) (8, 12, 17–22) and to the risk of intravenous immunoglobulin (IVIG) resistance (BCL2L11 and SAMD9L) (23, 24). This evidence concerns the gene SLC8A1 and cardiovascular disorder.