I am a paediatric registrar, working at The Whittington Hospital, London. I am an aspiring paediatric infectious disease clinical epidemiologist, and I am currently working towards a Master’s degree in epidemiology at the London School of Hygiene and Tropical Medicine. My research interest is particularly focused on paediatric infectious disease problems in resource-poor settings.

Asgeir Haraldsson Medical School: University of Iceland, Reykjavik Iceland Professional training in paediatrics and immunology: Radboud University Medical Center, Nijmegen, The Netherlands Staff paediatrician at the Department of Paediatrics at the University Hospital Nijmegen Staff member and chief of the section of Immunology and Bone Marrow Transplantation at the Paediatric Department of the Leiden University Hospital. Professor of paediatrics at the University of Iceland and faculty chairman at the Children's Hospital Iceland, Landspítali University Hospital Iceland. PhD thesis Immunoglobulin light chain ratios in health and disease - a paediatric study. ISBBN: 90-9006045-6 Publications: google scholar. Other: Several presentations on national and international conferences. Supervised number of BSc projects, MSc and PhD studies Opponent at PhD defenses in Iceland, Sweden, and The Netherlands on several occasions Member of various committees, appointed by the University of Iceland, The University Hospital or others including ESPID’s Committee for Education Organised national and international meetings, workshops and conferences. Received research grants and awards for teaching. Reykjavík, May 2021 Ásgeir Haraldsson Professor in Paediatrics, University of Iceland Chair and Faculty Chairman Children’s Hospital Iceland Landspitali - University Hospital 101 Reykjavík Iceland E-mail: asgeir@lsh.is

Simon is a general paediatric registrar in Sheffield with an interest in infection. During his training he has taken 18 months out of programme to complete the DTMH in East Africa, work on a rural paediatric ward in Uganda and a small Malawian health clinic. He is currently undertaking an MD at the University of Sheffield and has an interest in antibiotic resistance.

Prof. Dr. Christoph Härtel (MD) Date of Birth: 03/03/1974 in Rostock Nationality: German Education 1992-1995 Medical School, University of Rostock 1995-1996 Studies of Molecular Genetics, Biochemistry and Immunology University of Cincinnati, USA 2000 German Medical license Degrees 2000 Medical Doctorate (Supervisor Prof. Dr. med. H. Kirchner, University of Lübeck) 2009 Habilitation for Pediatrics, Supervisor: Prof. Dr. med. E. Herting) 2014 Associate Professor of Pediatrics (apl) 2020 Appointment as Full Professor (W3) Pediatrics (Julius-Maximilians-University Würzburg) Academic Appointments 2000-2006 Residency in Pediatrics, Department of Pediatrics, University Hospital of Lübeck, Certification of Pediatrics 2007-2008 Clinical Fellow Neonatology, Pediatric Oncology Children’s Hospital Westmead, University of Sydney/Australia 2009-2020 Head of the Division of Paediatric Infectious Diseases and Immunology, Snr Consultant Neonatology and Paediatric Intensive Care, University of Lübeck Children’s Hospital 2009 Certification of pediatric subspecialty Neonatology 2010 Certification of pediatric subspecialty Pediatric Hematology and Oncology 2012 Certification of pediatric subspecialty Pediatric Intensive Care 2013 Certification as Clinical Trial investigator 2014 Certification of pediatric subspecialty Pediatric Infectious Diseases 05.2020 - Head, Department of Pediatrics, Julius-Maximilians-University Würzburg Selected Awards and Honors 2006 Graduate Award for Therapeutic Research 2009 Award of Deutsche Gesellschaft für Pädiatrische Infektiologie (DGPI) 2012 Award of Deutsche Interdisziplinäre Vereinigung für Intensiv- und Notfallmedizin (DIVI) 2019 Research Prize DGPI Publications: h-index 30 (Web of Science), original research (first or last)

Dr Manasik Hassan is a general paediatric consultant at Hamad medical corporation , a clinical lecturer in general paediatrics, College of Medicine, Qatar University and assistant professor of clinical pediatric Weill Cornell medical college- Qatar. Dr Manasik received her medical training at Gezira University in Sudan. She has worked as a general paediatrician at Hamad Medical Corporation since 2015. Dr Manasik’s areas of practice and interest include inpatient medicine, participating in designing and conducting clinical research, teaching, and supervising residents during their residency, putting great effort in clinical and academic researchers and quality improvement projects in paediatric programs. She has a wide variety of accepted abstracts and has presented workshops in multiple international conferences. She is an instructor of a different educational committee including communication, simulation, quality and safety.

Ulrich HEININGER Professor for Paediatrics Head of Division of Paediatric Infectious Diseases University of Basel Children's Hospital, Basel, Switzerland Ulrich Heininger has been in charge of the Division of Paediatric Infectious Diseases and Vaccinology at the University of Basel Children’s Hospital, Basel, Switzerland, since 1998. He is a professor of paediatrics at the University of Basel and his research is focused on vaccine-preventable diseases, vaccines, and vaccine safety. Ulrich Heininger served a member of the Global Advisory Committee on Vaccine Safety (GACVS) of the World Health Organization. He is one of 9 scientists and founding member running the INFOVAC service, a Swiss nationwide information network for vaccine related questions raised by physicians and pharmacists. Ulrich has been member of the National Immunization Technical Advisory Groups (NITAG) of Germany since 2001 and of Switzerland from 2004 to 2019, respectively. He was board member (treasurer), 1999-2005, and president of the European Society of Pediatric Infectious Diseases, ESPID, from 2009 to 2012. He serves on the editorial board of several scientific journals and has published more than 300 scientific publications in the field of infectious diseases and vaccines.

Doctor Maria Hemming-Harlo has years of experience of working as a medical expert in clinical vaccine studies. Her academic interests mainly focus on the effects of universal rotavirus vaccination in Finland and inflammatory bowel diseases in children. Her current interest lies in long-term effect of rotavirus vaccination, including potential autoimmune-diseases and long-term protection. Doctor Hemming-Harlo is working as a pediatrician in Helsinki New Children Hospital, Finland.

1. Academic data: • Medical degree: Medicine. University of Valladolid (2003-2009). • Medical speciality: Paediatrics (Gregorio Marañón University Hospital; 2010-2014). • Subespeciality: Pediatric Infectious Diseases (Gregorio Marañón University Hospital; 2013-2014). • Rotations: Microbiology (Gregorio Marañón University Hospital, March-April 2014), Pediatric Infectious Diseases and Immunodeficiencies Unit (Vall d´Hebron University Hospital, October-November 2014). • Training period in the Tropical Pediatric Unit, International Adoption and Child traveler (La Paz University Hospital, November 2014). • Master´s degree: Pediatric Infectious Diseases and Immunodeficiencies (Vall d´Hebron University Hospital; 2015). Master´s dissertation: Invasive Candidiasis in Paediatrics. 2. Professional data: • Current position: Paediatrician in Sureste University Hospital, Arganda del Rey, Madrid (since February 2016). 3.- Investigation: • Publications in national journals and colaboration in sections of books. • Collaboration in Spanish Paediatric´s Masters and national courses. • Some poster and oral communications in National and International conferences. • Collaboration in clinical trials and data bases. 4.- Societies • Member of the Spanish Society of Paediatric Infectious Diseases since 2013. • Member of the European Society of Paediatric Infectious Diseases since 2014. • Member of the Spanish Society of Paediatrics since 2016.

I obtained my medical degree at Complutense University (Madrid, Spain). I did my residency period at Gregorio Marañón University Hospital. After that, I specialized in Infectious Diseases. I am actually working at Gregorio Marañón University Hospital as consultant paediatrician and as clinical researcher at Instituto de Investigación Sanitaria Gregorio Marañón (paediatric tuberculosis, vaccination and infections in immunocompromised children).