Selective IgA₂ deficiency in a patient with small intestinal Crohn’s disease

¹Henry D Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, United States of America

²Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, United States of America

³Barrier immunity Section, Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, United States of America

⁴Biobanking and data management, Prometheus Laboratories, San Diego, United States of America

⁵Center for Inborn Errors of Immunity, Icahn School of Medicine at Mount Sinai, New York, United States of America

⁶Translational Clinical Research Program, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain

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¹Henry D Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, United States of America

²Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, United States of America

³Barrier immunity Section, Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, United States of America

⁴Biobanking and data management, Prometheus Laboratories, San Diego, United States of America

⁵Center for Inborn Errors of Immunity, Icahn School of Medicine at Mount Sinai, New York, United States of America

⁶Translational Clinical Research Program, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain

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¹Henry D Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, United States of America

²Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, United States of America

³Barrier immunity Section, Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, United States of America

⁴Biobanking and data management, Prometheus Laboratories, San Diego, United States of America

⁵Center for Inborn Errors of Immunity, Icahn School of Medicine at Mount Sinai, New York, United States of America

⁶Translational Clinical Research Program, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain

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¹Henry D Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, United States of America

²Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, United States of America

³Barrier immunity Section, Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, United States of America

⁴Biobanking and data management, Prometheus Laboratories, San Diego, United States of America

⁵Center for Inborn Errors of Immunity, Icahn School of Medicine at Mount Sinai, New York, United States of America

⁶Translational Clinical Research Program, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain

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¹Henry D Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, United States of America

²Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, United States of America

³Barrier immunity Section, Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, United States of America

⁴Biobanking and data management, Prometheus Laboratories, San Diego, United States of America

⁵Center for Inborn Errors of Immunity, Icahn School of Medicine at Mount Sinai, New York, United States of America

⁶Translational Clinical Research Program, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain

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¹Henry D Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, United States of America

²Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, United States of America

³Barrier immunity Section, Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, United States of America

⁴Biobanking and data management, Prometheus Laboratories, San Diego, United States of America

⁵Center for Inborn Errors of Immunity, Icahn School of Medicine at Mount Sinai, New York, United States of America

⁶Translational Clinical Research Program, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain

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¹Henry D Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, United States of America

²Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, United States of America

³Barrier immunity Section, Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, United States of America

⁴Biobanking and data management, Prometheus Laboratories, San Diego, United States of America

⁵Center for Inborn Errors of Immunity, Icahn School of Medicine at Mount Sinai, New York, United States of America

⁶Translational Clinical Research Program, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain

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¹Henry D Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, United States of America

²Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, United States of America

³Barrier immunity Section, Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, United States of America

⁴Biobanking and data management, Prometheus Laboratories, San Diego, United States of America

⁵Center for Inborn Errors of Immunity, Icahn School of Medicine at Mount Sinai, New York, United States of America

⁶Translational Clinical Research Program, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain

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¹Henry D Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, United States of America

²Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, United States of America

³Barrier immunity Section, Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, United States of America

⁴Biobanking and data management, Prometheus Laboratories, San Diego, United States of America

⁵Center for Inborn Errors of Immunity, Icahn School of Medicine at Mount Sinai, New York, United States of America

⁶Translational Clinical Research Program, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain

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¹Henry D Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, United States of America

²Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, United States of America

³Barrier immunity Section, Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, United States of America

⁴Biobanking and data management, Prometheus Laboratories, San Diego, United States of America

⁵Center for Inborn Errors of Immunity, Icahn School of Medicine at Mount Sinai, New York, United States of America

⁶Translational Clinical Research Program, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain

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¹Henry D Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, United States of America

²Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, United States of America

³Barrier immunity Section, Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, United States of America

⁴Biobanking and data management, Prometheus Laboratories, San Diego, United States of America

⁵Center for Inborn Errors of Immunity, Icahn School of Medicine at Mount Sinai, New York, United States of America

⁶Translational Clinical Research Program, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain

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¹Henry D Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, United States of America

²Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, United States of America

³Barrier immunity Section, Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, United States of America

⁴Biobanking and data management, Prometheus Laboratories, San Diego, United States of America

⁵Center for Inborn Errors of Immunity, Icahn School of Medicine at Mount Sinai, New York, United States of America

⁶Translational Clinical Research Program, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain

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¹Henry D Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, United States of America

²Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, United States of America

³Barrier immunity Section, Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, United States of America

⁴Biobanking and data management, Prometheus Laboratories, San Diego, United States of America

⁵Center for Inborn Errors of Immunity, Icahn School of Medicine at Mount Sinai, New York, United States of America

⁶Translational Clinical Research Program, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain

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¹Henry D Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, United States of America

²Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, United States of America

³Barrier immunity Section, Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, United States of America

⁴Biobanking and data management, Prometheus Laboratories, San Diego, United States of America

⁵Center for Inborn Errors of Immunity, Icahn School of Medicine at Mount Sinai, New York, United States of America

⁶Translational Clinical Research Program, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain

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¹Henry D Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, United States of America

²Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, United States of America

³Barrier immunity Section, Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, United States of America

⁴Biobanking and data management, Prometheus Laboratories, San Diego, United States of America

⁵Center for Inborn Errors of Immunity, Icahn School of Medicine at Mount Sinai, New York, United States of America

⁶Translational Clinical Research Program, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain

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¹Henry D Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, United States of America

²Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, United States of America

³Barrier immunity Section, Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, United States of America

⁴Biobanking and data management, Prometheus Laboratories, San Diego, United States of America

⁵Center for Inborn Errors of Immunity, Icahn School of Medicine at Mount Sinai, New York, United States of America

⁶Translational Clinical Research Program, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain

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¹Henry D Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, United States of America

²Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, United States of America

³Barrier immunity Section, Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, United States of America

⁴Biobanking and data management, Prometheus Laboratories, San Diego, United States of America

⁵Center for Inborn Errors of Immunity, Icahn School of Medicine at Mount Sinai, New York, United States of America

⁶Translational Clinical Research Program, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain

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¹Henry D Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, United States of America

²Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, United States of America

³Barrier immunity Section, Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, United States of America

⁴Biobanking and data management, Prometheus Laboratories, San Diego, United States of America

⁵Center for Inborn Errors of Immunity, Icahn School of Medicine at Mount Sinai, New York, United States of America

⁶Translational Clinical Research Program, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain

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¹Henry D Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, United States of America

²Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, United States of America

³Barrier immunity Section, Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, United States of America

⁴Biobanking and data management, Prometheus Laboratories, San Diego, United States of America

⁵Center for Inborn Errors of Immunity, Icahn School of Medicine at Mount Sinai, New York, United States of America

⁶Translational Clinical Research Program, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain

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¹Henry D Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, United States of America

²Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, United States of America

³Barrier immunity Section, Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, United States of America

⁴Biobanking and data management, Prometheus Laboratories, San Diego, United States of America

⁵Center for Inborn Errors of Immunity, Icahn School of Medicine at Mount Sinai, New York, United States of America

⁶Translational Clinical Research Program, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain

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