Originally from The Gambia, the smallest country on the African mainland, Dr Jagne has studied, lived and worked in the United States for almost 38 years. She holds a DVM (1990) from Cornell University and a BSc (Hons) in Biology from Colorado State University. She completed a two-year residency in Avian Diseases and Pathology at the University of Pennsylvania and is a Diplomate of the American College of Poultry Veterinarians (DACPV). 

Dr Jagne has over 27 years of experience in poultry disease management and control. She spent four years working in the international development field on avian influenza control in poultry. She has worked for Development Alternatives Inc. (DAI), a consulting firm based in Bethesda, Maryland. She was the Senior Veterinary Advisor for STOP Avian Influenza (AI), a project administered by DAI and funded by the United States Agency for International Development (USAID). She co-authored several manuals on Poultry Farm Biosecurity and Disease Outbreak Response as part of the STOP AI project.  Before joining the STOP AI project, she worked for a year as a Veterinary Diagnostician with the Food and Agriculture Organization (FAO) of the United Nations in Rome, Italy. Her work in poultry took her to many countries in Africa and South-East and Central Asia.

She also worked for seven years in the commercial poultry sector in the United States as a Technical Services Manager for ISA Babcock, a large poultry genetics company.   Dr. Jagne served as the Northeast Representative to the National Poultry Improvement Plan (NPIP) General Conference Committee for a total of six years (2002-2005 and 2015-2018) and as the Chair for the Animal Welfare Committee for the American Association of Avian Pathologists (AAAP) from 2003-2006. She has given numerous presentations on poultry diseases to a variety of audiences and has consulted for several governments in West Africa.

Dr Jagne is passionate about poultry and enjoys outreach activities with veterinarians,  veterinary students and poultry producers both big and small.  She loves to travel, read, cook and discuss international politics with her husband and three adult children who also seem to have the travel bug. Her 17-month-old granddaughter Sona and her parents live in Portugal.