CGHE members span the University of Michigan and the globe, including faculty experts, research collaborators, scholars, and community partners. Search for Members with Keywords, Sponsors, Locations, or Categories + Leon Espira, MPH, PhD, MSc Designing objective biological impact measures Joseph (Joe) Kamau, PhD, MSc Disease ecology, infectious and non-infectious diseases, climate change and health Zul Merali, PhD Bio-psychosocial determinants of mental health Purity Muthoni, PhD Urban planning and environmental sustainability David (Dave) Ripin, PhD Prevention and treatment of infectious diseases Pamela Wadende, PhD, MEd Mental health, family education, climate change adaptations, non-communicable diseases