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Dr. Hibbah Araba Osei Kwasi, RNut (Public Health)

Dr Hibbah Osei-Kwasi is an AXA Research Fellow at the University of Sheffield with over 10 years research experience. Her research interest cuts across nutrition, psychology and public health.

Her current research focuses on dietary behaviours of African migrants in the UK. She also has experience working in Africa having previously been part of two research projects in Africa, to explore dietary transitions, drivers of food choice and the food environment in Ghana and Kenya. Hibbah Osei-Kwasi led the development of the first African Urban Food Environment Framework for creating healthy nutrition policy and interventions in urban Africa”.  She also teaches Nutrition and Public Health related courses at the undergraduate and postgraduate level at the University of Sheffield and University of Chester (as a visiting lecturer). 

Beyond Academia, Hibbah leads Sahara Nutrition, a network of Black nutrition researchers, registered nutritionists and dietitians, spearheading the translation of research evidence into policy action, practice; and disseminating knowledge to empower African and Caribbean communities to promote health and prevent diseases.

Renzo Guinto, MD DrPH

Renzo Guinto, MD DrPH is the Chief Planetary Health Scientist of the Sunway Centre for Planetary Health in Malaysia.


Concurrently, he is the Associate Professor of the Practice of Global Public Health and Inaugural Director of the Planetary and Global Health Program of the St. Luke’s Medical Center College of Medicine in the Philippines.


An Obama Foundation Asia-Pacific Leader and Aspen Institute New Voices Fellow, Renzo is a member of several high-level groups including: Philippine Climate Change Commission; Lancet–Chatham House Commission on Improving Population Health post COVID-19; Lancet One Health Commission; and Advisory Council of Global Health 50/50.


He has served as consultant for various organizations including WHO, World Bank, and USAID.


Renzo obtained his Doctor of Public Health from Harvard University and Doctor of Medicine from the University of the Philippines.


In 2020, Renzo was included by Tatler Magazine in its Gen.T List of 400 leaders of tomorrow who are shaping Asia’s future.

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Dr James Weber


Research Associate, Climate Change Mitigation, University of Sheffield

James Weber is an atmospheric chemist and climate scientist interested in how changes to atmospheric composition will influence climate change. His PhD at the University of Cambridge looked at how emissions from vegetation impact climate and he is currently investigating how widescale tree planting to remove carbon dioxide may affect atmospheric composition and climate. As part of his PhD, James contributed to the evidence base of the 2021 IPCC AR6 report on climate change and led a study simulating the climatic influence of anthropogenic emission reductions from the COVID-19 pandemic.

Dr. Kikiope Oluwarore

Dr. Kiki is a veterinarian with interrelated experiences in One Health & Animal Welfare programming, research, and nonprofit management. She is the Founder of One Health and Development Initiative (OHDI), a Nigerian-based nonprofit organization dedicated to addressing correlated issues of human, animal and environmental health using the "One Health" approach.


She has consulted for international organizations such as the African Union-InterAfrican Bureau for Animal Resources (AU-IBAR) and Animal Advocacy Africa (AAA) and has co-managed relevant health programs in Education as a Vaccine (EVA) and Forward Africa. Furthermore, she has conducted investigations and published media articles on One Health issues with international media organizations such as Code for Africa and Internews' Earth Journalism Network (EJN).


Dr. Kiki acquired her DVM degree from the University of Ibadan and is a Commonwealth Scholar alumnus, completing her M.Sc. degree in Global Health and Infectious Diseases at the University of Edinburgh, Scotland, United Kingdom. 


Outside of work, Dr. Kiki enjoys music, travel and family time.

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N. Charles Hamilton, BSc, MPH, Mgr.

N. Charles Hamilton is a Climate Change Advisor in The Office of the Prime Minister of The Bahamas. He has worked at the nexus of climate change, global health, youth, and sustainable development issues, through various roles held in government, the private sector, civil society, and multilateral organizations in The Bahamas, Canada, and Europe. 
Charles has supported The Bahamas in regional and international Climate Change negotiations, briefing his Prime Minister and other high-level Cabinet and government officials, and was most recently elected as a representative to the UNFCCC Article 6.4 (Carbon Credit Market) Supervisory Committee. He has delivered interventions at the 75th United Nations General Assembly. Additionally, Charles has served as Project Manager for the development of several key climate change and health-related reports for The Bahamas and other jurisdictions. 
He is a proud alumnus of St. Andrew's School, where he received a full academic scholarship, graduating in 2008. Charles went on to obtain a Bachelor of Science degree in Biomedical Sciences ('14) from the University of Guelph and a Double Masters Degree (with Distinction) in Public Health, specializing in Health Economics and Governance of Health Systems ('19), from the Europubhealth+ program - where he researched "National Adaptation Planning for Climate Change and Public Health in the Caribbean". 
He is co-founder of SheffWHO, which in its 5th year continues to explore and educate persons on power and dynamics in global health diplomacy. 
Charles continues to be involved in the publication of scientific papers to advance climate science, public health, and the empowerment of persons from "Big Ocean States" (like The Bahamas) and other marginalized groups in academic research.

Biosketch Jakob Zinsstag

Prof. Dr. Jakob Zinsstag is a veterinarian with a PhD in tropical animal health. He spent eight years in West Africa at the International Trypanotolerance Centre in The Gambia and four years as the director of the Centre Suisse de Recherches Scientifiques in Côte d’Ivoire. Since 1998 he heads a research group on human and animal health at the Swiss Tropical and Public Health Institute. Since 2011 he has been deputy head of the department of Epidemiology and Public Health at Swiss TPH. He focuses on the control of zoonoses in developing countries and the provision of health care to mobile pastoralists using a One Health approach. He is past president of the International Association for Ecology and Health and president of the scientific board of the Transdisciplinary network of the Swiss Academies.

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Naomi L Nathan, MD, Dual MPH

Naomi Nathan is a medical doctor and holds a Master’s Degree in Public Health (distinction), with a specialisation in Health Economics and Governance of Health Systems from the (Europubhealth+) program. She is a co-founder of SheffWHO which continues to educate and equip persons with the skillset to navigate global health diplomacy. 
She has worked on several aspects of public health workforce development to synergise education, training and practice, specifically targeting young public health professionals. She actively worked on the COVID-19 response at the WHO Regional Office for Europe in relation to health systems policies for pandemic and served as a secretariat member for Pan European Commission on Health and Sustainable Development, which strongly recognised the importance of One Health and recommended it's operationalisation at all levels. She currently works in the field of health policy, health systems strengthening in Low Middle Income Countries (LMICs) on topics ranging from digitalisation to strengthening health systems governance and participation. She advocates for, advises & empowers young health professionals, particularly on navigating career paths.
Thank you so much for the great work and looking forward to  meeting you all in person.

Dr Mabel De Leo MD, MSc

Dr. Mabel De Leo is a physician from Mexico with previous experience in clinical medicine, infectious diseases, and the creation of behavioural change communication materials. 


She has a wide background in sexual and reproductive health, and she has taught and conducted public health campaigns in indigenous communities about sexually transmitted infections. She has a Master in Science in Antimicrobial Resistance from the University of Sheffield, and she is passionate about the One Health approach and acknowledges how working across sectors can improve the health of animals, plants, and humans. 


In addition, she is interested in researching the drivers of antibiotic use in low and middle-income countries. Her future goals are to work along with international organizations in implementing programs to prevent the spread of infectious diseases and antimicrobial resistance. She hopes to inspire people in getting involved to learn more about One Health and provide them with educational tools that will empower the decisions they make in regards to their health.

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