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Genetic diagnosis plays a crucial role in rare diseases, particularly with the increasing availability of emerging and accessible treatments. The International Rare Diseases Research Consortium (IRDiRC) has set its primary goal as: "Ensuring that all patients who present with a suspected rare disease receive a diagnosis within one year if their disorder is documented in the medical literature". 

Children living with a rare disease often endure a lengthy journey to diagnosis, commonly referred to as a diagnostic odyssey. This journey significantly impacts their physical, mental and financial wellbeing, in addition to that of their families. The diagnostic odyssey is often characterised by anxiety and stress surrounding the uncertainty of the future. This is experienced by the patient as well as by the family.