Less than half the world's population has access to health care compared to 98.8% in the most developed countries. Founded in 1986, in an attempt to remedy this problem, Health Volunteers Overseas (HVO), a private, non-profit, non-sectarian voluntary organization headquartered in the United States, is dedicated to improving the availability and quality of health care in developing countries through training and education. Physicians from all over the united states volunteer for Health Volunteers Overseas programs, travel at their own expense, and work in training programs located in 25 developing countries in the Americas, Asia, Africa and Eastern Europe.