Ceftazidime Allergy, also known as tazicef allergy, is related to chlorhexidine allergy and chronic inducible urticaria. An important gene associated with Ceftazidime Allergy is MRGPRX2 (MAS Related GPR Family Member X2), and among its related pathways/superpathways are Innate Immune System and Cytokine Signaling in Immune system. Related phenotypes are Increased shRNA abundance (Z-score > 2) and immune system