With more than 25 years experience in domestic and international public health, Dr. Haviland has worked with a wide range of organizations including UNAIDS, the UN Department of Public Information, the UN Foundation, UN Women, the UN Development Program, the World Health Organization (WHO), the International Organization for Migration (IOM), the International Medical Corps, the CUNY School of Public Health, the American Public Health Association (APHA), Lutheran Immigration and Refugee Services (LIRS), the American Legacy Foundation, Earth Echo International, GAVI, Darkness to Light, Policy Wisdom, Forest Trends, and the Aspen Institute.

Highly respected as a leader, moderator, speaker, and fundraiser, Lyndon has advised heads of state and agency leaders on maternal and child health, access to vaccines, sexual and reproductive health, tobacco control, and health promotion/disease prevention. She is a passionate advocate for human rights and is dedicated to bringing individuals and organizations together to achieve lasting social change.