Viral Exanthem, also known as nonspecific exanthematous viral infection, is related to pityriasis rosea and chikungunya, and has symptoms including exanthema An important gene associated with Viral Exanthem is IZUMO4 (IZUMO Family Member 4), and among its related pathways/superpathways are Immune response IL-23 signaling pathway and NF-kappaB Signaling. Affiliated tissues include skin and liver, and related phenotypes are immune system and respiratory system