Dr. William Karesh

Executive Vice President for Health and Policy

"EcoHealth Alliance is the only organization in the world that is completely focused on integrating global health with critical conservation challenges to make our world a better place for all. I'm really honored and proud to be a member of the EcoHealth Alliance team and work with our partners around the globe."

Scientists Bio

Dr. William (Billy) Karesh is an internationally recognized expert on infectious diseases, wildlife conservation, and the environment. He is the Executive Vice President for Health and Policy for EcoHealth Alliance. Dr. Karesh serves as the Co-Chair of the IUCN SSC Wildlife Health Specialist Group and the Chair of the World Animal Health Organisation’s Working Group on Wildlife. Dr. Karesh also serves on the World Health Organization’s (WHO) International Health Regulations Roster of Experts focused on the human-animal interface and wildlife health.

In 2016, he was appointed as an ex-officio member of the Bipartisan Commission on Biodefense and became a member of the Council on Foreign Relations. He works with government agencies around the world and is an invited expert for intergovernmental and development organizations including UNISDR, FAO, WHO, and the World Bank. Dr. Karesh has pioneered initiatives focusing attention and resources on solving challenges created by the interactions among wildlife, people, and their animals, developing and leading projects in over 50 LMIC countries. In 2003, he coined the term “One Health” to describe the interdependence of healthy ecosystems, animals and people.