| CPC C12Q 1/6876 (2013.01) [C12Q 1/6837 (2013.01); C12Q 1/686 (2013.01)] | 12 Claims |

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1. A method of treating a subject having Kawasaki disease (KD), comprising administering a treatment for KD to the subject, wherein the subject is a child that has been previously identified as having Kawasaki disease by detecting in a subject derived blood RNA sample a modulation in gene expression levels of a gene signature comprising PYROXD2 and at least 4 of the following genes: CACNA1E, DDIAS, KLHL2, SMOX, ZNF185, LINC02035, CLIC3, S100P, IFI27, HS.553068, CD163, and RTN1, wherein the treatment is gamma globulin (IVIg), aspirin, or other anti-inflammatory agents.
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