Coronary artery aneurysms (CAA) are the major sequelae following a diagnosis of Kawasaki disease (KD). We know that the younger infant is more at risk of this complication and early commencement of IV Immunoglobulin (IVIG) is the key to prevention. There is, of course a genetic and environmental influence on response and outcome. Can we identify those infants or children at risk early on in their illness? Several prediction tools are available for identification of those at risk of CAA and the initial ones were based on Japanese populations. It may be necessary to have those prediction tools derived from different populations …