Nigeria Centre for Disease Control (NCDC)Karolinska Institutet - Department of Global Public Health, Nigeria COVID-19 Research Coalition, Karolinska Institutet - Department of Global Public Health, Nigeria Centre for Disease Control (NCDC), University of Nottingham - Division of Epidemiology and Public Health, Nigeria Centre for Disease Control (NCDC), Irrua Specialist Teaching Hospital - Institute of Lassa Fever Research and Control, Nigeria Centre for Disease Control (NCDC), Nigeria Centre for Disease Control (NCDC), African Union - Africa Centres for Disease Control and Prevention, Nigeria Centre for Disease Control (NCDC), Nigeria Centre for Disease Control (NCDC), Nigeria Centre for Disease Control (NCDC), Karolinska Institutet - Department of Global Public Health, Lagos State Ministry of Health, Nigeria Centre for Disease Control (NCDC), Nigeria Centre for Disease Control (NCDC), Mainland Hospital - Infectious Disease Unit, University of Benin - Department of Microbiology, Nigeria Centre for Disease Control (NCDC), Nigeria Centre for Disease Control (NCDC), Nigeria Centre for Disease Control (NCDC), Nigeria Centre for Disease Control (NCDC), University of Abuja, Nigeria - University Of Abuja Teaching Hospital, World Bank, Nigeria Centre for Disease Control (NCDC), Nigeria Centre for Disease Control (NCDC), Adamawa State Ministry of Health and Human Services, Tony Blair Institute for Global Change, Nigeria Centre for Disease Control (NCDC), Irrua Specialist Teaching Hospital - Institute of Lassa Fever Research and Control, Mainland Hospital - Lagos State Biobank, Nigeria Centre for Disease Control (NCDC), Nigeria Centre for Disease Control (NCDC), Ministry of Health (Nigeria), Nigeria COVID-19 Research Coalition, Maryland Global Initiatives Corporation, Nigeria Centre for Disease Control (NCDC), Nigeria Centre for Disease Control (NCDC), Nigeria Centre for Disease Control (NCDC), National Hospital Abuja - Department of Internal Medicine, Kaduna State Ministry of Health - Kaduna State Infectious Disease Control Centre, Nigeria Centre for Disease Control (NCDC), Nigeria Centre for Disease Control (NCDC), Bauchi State Ministry of Health, Kwara State Ministry of Health, Resolve to Save Lives (Nigeria), Nigerian Institute of Medical Research, World Health Organization (WHO), Nigeria Centre for Disease Control (NCDC), Nigeria Centre for Disease Control (NCDC), Nigeria Centre for Disease Control (NCDC), Nigeria Centre for Disease Control (NCDC), Public Health England - International Health Strengthening Project, World Health Organization (WHO), University of Nebraska at Omaha - Department of Pediatrics, Nigeria COVID-19 Research Coalition, Nigeria COVID-19 Research Coalition, College Of Health Sciences, Usmanu Danfodiyo University, University of Benin - Department of Community Health, University of Benin - Centre of Excellence in Reproductive Health Innovation, Nigeria COVID-19 Research Coalition, University College London - Institute for Global Health, Karolinska Institutet - Department of Global Public Health, Nigeria Centre for Disease Control (NCDC) and Nigeria Centre for Disease Control (NCDC)

University College London, University of Pittsburgh, Build Health International, University College London - Institute for Global Health, University College London - Institute for Global Health, University College London - UCL Centre for Advanced Research, University College London, Karolinska Institutet - Department of Global Public Health, Government of Malawi, Imperial College London - Department of Infectious Disease Epidemiology, Kamuzu University of Health Sciences, University of York - Centre for Health Economics, Imperial College London, Kamuzu University of Health Sciences, University of York, PATH, Imperial College London, PATH, University College London, University of York, University College London - Institute for Global Health, Imperial College London - MRC Centre for Global Infectious Disease Analysis and University College London - Institute for Global Health

University College London - Institute for Global Health, University of Ibadan - Department of Paediatrics, University of Melbourne - Department of General Medicine, University of Ibadan, University College Hospital Ibadan, Independent, University of Pittsburgh, University College London, Save the Children International, Nigeria, Save the Children International, Nigeria, Save the Children International, Nigeria, Save the Children International, Nigeria, Save the Children, UK, Save the Children, UK, Save the Children, UK, GlaxoSmithKline, University of Ibadan, University College London, Karolinska Institutet - Department of Global Public Health and Independent

University of Melbourne - Department of General Medicine, University of Melbourne - Department of General Medicine, University of Ibadan, Independent, University of Ibadan, University of Ibadan - Department of Paediatrics, Makerere University School of Public Health, Makerere University School of Public Health, Karolinska Institutet - Department of Global Public Health, University of Melbourne, Melbourne School of Population and Global Health, Students, University of College London, University of Melbourne and University of Melbourne - Department of General Medicine