Dr. Maria Guevara has been the MSF International Medical Secretary since 2021. She is a multilingual humanitarian specialist and a medical doctor, trained in pulmonary, critical care and tropical medicine, with a strong background in complex humanitarian settings, global health policy, planetary health practice and advocacy. She has over 22 years of humanitarian experience and over 12 years of executive leadership and senior management practice through her work with Medecins Sans Frontieres/Doctors Without Borders. Her extensive humanitarian field work has spanned across countries in Africa, Americas, and Asia in both emergency and stable settings as well as being the organization's Regional Representative in Asia from 2012 to 2017 and was the Senior Coordinator on Attacks on Healthcare for MSF from 2017-2018, leading reflections on the protection of the medical mission. Dr. Guevara served as a member of the Advisory Group on Reform of WHO’s Work in Outbreaks and Emergencies with Health and Humanitarian Consequences from July 2015 to January 2016 and was a member of the Independent Vaccine Allocation Group associated with the COVAX facility established during the COVID pandemic. Her special interests and passion are Global Health, Response in Emergencies, Health Security and Planetary Health.