St. George’s University of London - Paediatric Infectious Diseases Research Group, University College London - Medical Research Council Clinical Trials Unit, Jawaharlal Institute of Postgraduate Medical Education & Research (JIPMER) - Department of Neonatology, St. George’s University of London - Paediatric Infectious Diseases Research Group, Childhood Acute Illness and Nutrition Network, Jawaharlal Institute of Postgraduate Medical Education & Research (JIPMER) - Department of Neonatology, All India Institute of Medical Sciences (AIIMS) - Newborn Division and WHO-CC, Global Antibiotic Research and Development Partnership (GARDP), University of the Witwatersrand - School of Clinical Medicine, Stellenbosch University - Department of Paediatrics and Child Health, Santa Casa de São Paulo - Pediatric Infectious Diseases Unit, Penta Foundation, Queen Sirikit National Institute of Child Health, University of São Paulo (USP) - Department of Pediatrics, All India Institute of Medical Sciences (AIIMS) - Department of Paediatrics, Bambino Gesù Children's Hospital - Academic Hospital Paediatric Department, London School of Hygiene & Tropical Medicine - Department of Infectious Disease Epidemiology, Chiang Mai University - PHPT/IRD, Vietnam National Children’s Hospital, Capital Medical University - Department of Neonatology, Stellenbosch University - Department of Paediatrics and Child Health, Seth GS Medical College - Neonatology Department, Lady Hardinge Medical College - Department of Neonatology, Shenzhen Children's Hospital - Department of Neonatology, University of Antwerp - Laboratory of Medical Microbiology, University of Antwerp - Laboratory of Medical Microbiology, Dhaka Shishu Hospital - Child Health Research Foundation (CHRF), Santa Casa de São Paulo - Pediatric Infectious Diseases Unit, Global Antibiotic Research and Development Partnership (GARDP), Queen Sirikit National Institute of Child Health - Neonatal Unit, University of Antwerp - Laboratory of Medical Microbiology, Karolinska Institutet - Department of Global Public Health, Bambino Gesù Children's Hospital - Academic Hospital Paediatric Department, University of Antwerp - Laboratory of Medical Microbiology, University of São Paulo (USP) - Department of Pediatrics, Seth GS Medical College - Neonatology Department, Lady Hardinge Medical College - Department of Neonatology, Makerere University - Johns Hopkins University Research Collaboration, Drugs for Neglected Diseases Initiative (DNDi), Kemri-Wellcome Trust Research Programme - Clinical Research Department,, Makerere University - Johns Hopkins University Research Collaboration, Capital Medical University - Beijing Obstetrics and Gynecology Hospital, Chiangrai Prachanukroh Hospital, World Health Organization (WHO) - Department of Maternal, Newborn, Child and Adolescent Health, University of the Witwatersrand - School of Clinical Medicine, St. George’s University of London - Paediatric Infectious Diseases Research Group, Aristotle University and Hippokration General Hospital - Infectious Diseases Unit, Dhaka Shishu Hospital - Child Health Research Foundation (CHRF), Aristotle University and Hippokration General Hospital - Infectious Diseases Unit, University of the Witwatersrand - School of Clinical Medicine, University of the Witwatersrand - School of Clinical Medicine, University of Antwerp - Laboratory of Medical Microbiology, Capital Institute of Pediatrics - Department of Neonatology, Shenzhen Children's Hospital - Department of Neonatology, Capital Medical University - Beijing Obstetrics and Gynecology Hospital, Global Antibiotic Research and Development Partnership (GARDP), St. George’s University of London - Paediatric Infectious Diseases Research Group, University College London - Medical Research Council Clinical Trials Unit, University of London - Institute of Infection and Immunity and St. George’s University of London - Paediatric Infectious Diseases Research Group

St. George’s University of London - Paediatric Infectious Diseases Research Group, University College London - Medical Research Council Clinical Trials Unit, Jawaharlal Institute of Postgraduate Medical Education & Research (JIPMER) - Department of Neonatology, St. George’s University of London - Paediatric Infectious Diseases Research Group, Childhood Acute Illness and Nutrition Network, Jawaharlal Institute of Postgraduate Medical Education & Research (JIPMER) - Department of Neonatology, All India Institute of Medical Sciences (AIIMS) - Newborn Division and WHO-CC, Global Antibiotic Research and Development Partnership (GARDP), University of the Witwatersrand - School of Clinical Medicine, Stellenbosch University - Department of Paediatrics and Child Health, Santa Casa de São Paulo - Pediatric Infectious Diseases Unit, Penta Foundation, Queen Sirikit National Institute of Child Health, University of São Paulo (USP) - Department of Pediatrics, All India Institute of Medical Sciences (AIIMS) - Department of Paediatrics, Bambino Gesù Children's Hospital - Academic Hospital Paediatric Department, London School of Hygiene & Tropical Medicine - Department of Infectious Disease Epidemiology, Chiang Mai University - PHPT/IRD, Vietnam National Children’s Hospital, Capital Medical University - Department of Neonatology, Stellenbosch University - Department of Paediatrics and Child Health, Seth GS Medical College - Neonatology Department, Lady Hardinge Medical College - Department of Neonatology, Shenzhen Children's Hospital - Department of Neonatology, University of Antwerp - Laboratory of Medical Microbiology, University of Antwerp - Laboratory of Medical Microbiology, Dhaka Shishu Hospital - Child Health Research Foundation (CHRF), Santa Casa de São Paulo - Pediatric Infectious Diseases Unit, Global Antibiotic Research and Development Partnership (GARDP), Queen Sirikit National Institute of Child Health - Neonatal Unit, University of Antwerp - Laboratory of Medical Microbiology, Karolinska Institutet - Department of Global Public Health, Bambino Gesù Children's Hospital - Academic Hospital Paediatric Department, University of Antwerp - Laboratory of Medical Microbiology, University of São Paulo (USP) - Department of Pediatrics, Seth GS Medical College - Neonatology Department, Lady Hardinge Medical College - Department of Neonatology, Makerere University - Johns Hopkins University Research Collaboration, Drugs for Neglected Diseases Initiative (DNDi), Kemri-Wellcome Trust Research Programme - Clinical Research Department,, Makerere University - Johns Hopkins University Research Collaboration, Capital Medical University - Beijing Obstetrics and Gynecology Hospital, Chiangrai Prachanukroh Hospital, World Health Organization (WHO) - Department of Maternal, Newborn, Child and Adolescent Health, University of the Witwatersrand - School of Clinical Medicine, St. George’s University of London - Paediatric Infectious Diseases Research Group, Aristotle University and Hippokration General Hospital - Infectious Diseases Unit, Dhaka Shishu Hospital - Child Health Research Foundation (CHRF), Aristotle University and Hippokration General Hospital - Infectious Diseases Unit, University of the Witwatersrand - School of Clinical Medicine, University of the Witwatersrand - School of Clinical Medicine, University of Antwerp - Laboratory of Medical Microbiology, Capital Institute of Pediatrics - Department of Neonatology, Shenzhen Children's Hospital - Department of Neonatology, Capital Medical University - Beijing Obstetrics and Gynecology Hospital, Global Antibiotic Research and Development Partnership (GARDP), St. George’s University of London - Paediatric Infectious Diseases Research Group, University College London - Medical Research Council Clinical Trials Unit, University of London - Institute of Infection and Immunity and St. George’s University of London - Paediatric Infectious Diseases Research Group

University of Oxford, University of Oxford, Liverpool School of Tropical Medicine, Kenya Medical Research Institute (KEMRI) - Kemri-Wellcome Trust Research Programme, Kenya Medical Research Institute (KEMRI) - Kemri-Wellcome Trust Research Programme, Kemri-Wellcome Trust Research Programme - Clinical Research Department,, University of Oxford - KEMRI-Coast Centre for Geographical Medicine and Research, affiliation not provided to SSRN, NHS Foundation Trust - Oxford University Hospitals, Kenya Medical Research Institute (KEMRI) - Kemri-Wellcome Trust Research Programme, University of Oxford - Centre for Tropical Medicine and Global Health, London School of Hygiene & Tropical Medicine - Faculty of Epidemiology and Population Health, Kenya Medical Research Institute (KEMRI) - Kemri-Wellcome Trust Research Programme, University of Oxford - Peter Medawar Building for Pathogen Research and Kenya Medical Research Institute (KEMRI) - Kemri-Wellcome Trust Research Programme