Our People
Global Emergency Team
Bhakti Hansoti, M.B.Ch.B., Ph.D., M.P.H.
Director, Center for Global Emergency Care
Fellowship Director, International Emergency Medicine & Public Health Fellowship
Associate Director of Academic Program, Johns Hopkins Center for Global Emergency Care
Associate Professor of Emergency Medicine
Expertise: HIV; Emergency Care; Implementation Science; Surveillance; COVID-19
![Bhakti Hansoti headshot](/-/media/global-emergency-care/bhakti-hansoti-300x375.jpg?h=375&iar=0&w=300&hash=EBFEE7B7812D7B90B32172FF6CC0DEAC)
Nicholas Pereira Risko, M.D., M.H.S.
Associate Director, Center for Global Emergency Care
Assistant Professor, Department of Emergency Medicine
Expertise: Global Health; Emergency Care Systems Development; Health Economics
![Nicholas Risko headshot](/-/media/global-emergency-care/nicholas-risko-300x375.jpg?h=375&iar=0&w=300&hash=AB580D0A93DF6CAF60467A3C5812D457)
Valerie Osasu Osula, M.D.
Assistant Director, Center for Global Emergency Care
Assistant Professor of Emergency Medicine
![Valerie Osula headshot](/-/media/global-emergency-care/valerie-osula-300x375.jpg?h=375&iar=0&w=300&hash=7D7D4DD119CA2C7EB06D64D7F1AD218C)
Edbert Brian Hsu, M.D., M.P.H.
Associate Director, Critical Event Preparedness and Response (CEPAR)
Associate Professor of Emergency Medicine
Expertise: Emergency Medicine
![Edbert Hsu headshot](/-/media/global-emergency-care/edbert-hsu-300x375.jpg?h=375&iar=0&w=300&hash=DB11B9FE38B1E588DF8BDE281815BBF3)
Amyna Husain, D.O.
Director, Pediatric Emergency Disaster Management
Pediatric Assistant Director, Biocontainment Unit, The Johns Hopkins Hospital
Assistant Professor of Pediatrics
Expertise: Pediatric Emergency Medicine
![Amyna Husain headshot](/-/media/global-emergency-care/amyna-husain-300x375.jpg?h=375&iar=0&w=300&hash=4BC92DE8AAEAF6854D4DFCC928E2E64A)
Adam David Laytin, M.D., M.P.H.
Assistant Professor of Anesthesiology and Critical Care Medicine
Assistant Professor of Emergency Medicine
Expertise: Trauma and Critical Care; Epidemiology; Clinical Outcomes; Emergency and Critical Care in Low Resource Settings; Global Health
![Adam Laytin headshot](/-/media/global-emergency-care/adam-laytin-300x375.jpg?h=375&iar=0&w=300&hash=D0469206158B09FD3D8E541D7F9D24C8)
Amelia Pousson, M.D., M.P.H.
Assistant Professor of Emergency Medicine
Expertise: Emergency Medicine
![Amelia Pousson headshot](/-/media/global-emergency-care/amelia-posson-300x375.jpg?h=375&iar=0&w=300&hash=40B69D691E75F8E0B255F5252D719A7E)
Gai Cole, Dr.P.H., M.B.A., M.H.A.
Research Associate, Johns Hopkins University School of Medicine
Expertise: Emergency Operations and Response Systems, Mass Casualty
![Gai Cole headshot](/-/media/global-emergency-care/gai-cole-300x375.jpg?h=375&iar=0&w=300&hash=43374AEB51E3BB5D225A2342A6C2A6D3)
Madeleine Whalen, M.S.N., M.P.H., R.N.
Evidence-Based Practice Program Coordinator, Johns Hopkins Health System
Expertise: Evidence-based practice, Research and Quality Improvement
![Maddie Whalen headshot](/-/media/global-emergency-care/maddie-whalen-300x375.jpg?h=375&iar=0&w=300&hash=754ADC49F5E4A3D27FEB47035CEC5657)
Helen Gherezghiher R.N., B.S.N., C.E.N.
![portrait placeholder](/-/media/global-emergency-care/physician-placeholder.png?h=375&iar=0&w=300&hash=9346E4AEBABC3D6B3ABF2D6C83B9E9C8)
Linda L. Thumba, P.T., D.P.T.
Training & Capacity Building Coordinator, Johns Hopkins School of Medicine
![Linda Thumba headshot](/-/media/global-emergency-care/linda-thumba-300x375.jpg?h=375&iar=0&w=300&hash=A5EE5F91ABDA8B1F6A9169112D7BF80F)
Catherine Villanueva, M.S.P.H.
Research Assistant, Department of International Health, Health Systems, Johns Hopkins Bloomberg School of Public Health
![Catherine Villanueva headshot](/-/media/global-emergency-care/catherine-villanueva-300x375.jpg?h=375&iar=0&w=300&hash=446A75BFA2C9EC24A65E41F22FCEB607)
Fellows
![portrait placeholder](/-/media/global-emergency-care/physician-placeholder.png?h=375&iar=0&w=300&hash=9346E4AEBABC3D6B3ABF2D6C83B9E9C8)
![portrait placeholder](/-/media/global-emergency-care/physician-placeholder.png?h=375&iar=0&w=300&hash=9346E4AEBABC3D6B3ABF2D6C83B9E9C8)