Dr Speckmann is senior lecturer at the Faculty of Medicine of the Albert Ludwig University Freiburg, Germany. He works as consultant for Pediatric Immunology and Hematopoietic Stem Cell Transplantation (HSCT) at the Freiburg University Medical Center’s Department for Pediatric Hematology/Oncology and the Center for Chronic Immunodeficiency (CCI). His research group has a focus on natural history studies for inborn errors of immunity (IEI) treatable by HSCT and/or targeted therapies.