1 Department of Paediatric and Adolescent Medicine, National Reference Centre for Childhood Tuberculosis, Klinik Ottakring, Vienna, Austria.
2 Department of Paediatric Infectious Diseases, University Hospital Gregorio Marañón and Gregorio Marañón Research Institute, Madrid, Spain.
3 Infectious and Imported Diseases, Paediatric Unit, National Referral Unit for Tropical Diseases, Hospital Sant Joan de Déu, Barcelona, Spain; Department of Paediatrics, Universitat de Barcelona, Barcelona, Spain; CIBER of Epidemiology and Public Health, CIBERESP, Madrid, Spain.
4 Department of Paediatric Pulmonology, Ruhr University Bochum, Bochum, Germany.
5 Department of Paediatric Infectious Diseases and Immunology, Evelina London Children's Hospital, Guy's and St Thomas' NHS Foundation Trust, London, UK; Department of Paediatrics, Royal Children's Hospital Melbourne, University of Melbourne, Melbourne, VIC, Australia; Department of Infection, Immunity and Inflammation, UCL Great Ormond Street Institute of Child Health, University College London, London, UK. Electronic address: m.tebruegge@ucl.ac.uk.