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Purpose of Review: The rate of inborn errors of immunity (IEI) in the Middle East and North Africa (MENA) region is generally higher than in other parts of the world. IEI patients in MENA exhibit more severe disease phenotypes. One of the most important reasons for this is delayed diagnosis. In this review, we examine issues pertinent to primary, secondary, and tertiary physicians in diagnosing IEI in children and discuss the key points for pediatricians according to the MENA guideline., Recent Findings: Protocols and stepwise approaches designed by a panel of clinical immunologists included in the MENA-IEI registry network can help physicians facilitate the diagnosis of patients with IEI by providing recommendations. These recommendations for diagnostic approaches improve the care of patients within the MENA region and can also be applied to IEI patients in other parts of the world other regions., Summary: Physicians in the MENA region should be aware of IEI, obtain a detailed family history, request tests that can be ordered in primary care when IEI is suspected, and refer patients to clinical immunologists without delay. Primary and secondary care physicians should be aware that patients with IEI may present with noninfectious manifestations and increased infection frequency, severity, and atypical infections., (Copyright © 2024 Wolters Kluwer Health, Inc. All rights reserved.)

Human inborn errors of immunity (IEI) are a group of 485 distinct genetic disorders affecting children and adults. Signs and symptoms of IEI are heterogeneous, and accurate diagnosis can be challenging and depends on the available human expertise and laboratory resources. The Middle East and North Africa (MENA) region has an increased prevalence of IEI because of the high rate of consanguinity with a predominance of autosomal recessive disorders. This area also exhibits more severe disease phenotypes compared with other regions, probably due to the delay in diagnosis. The MENA-IEI registry network has designed protocols and guidelines for the diagnosis and treatment of IEI, taking into consideration the variable regional expertise and resources. These guidelines are primarily meant to improve the care of patients within the region, but can also be followed in other regions with similar patient populations., (Copyright © 2022 American Academy of Allergy, Asthma & Immunology. All rights reserved.)