Before joining the Sabin Vaccine Institute in 2003, Dr. de Quadros was Director of the Division of Vaccines and Immunization at the Pan American Health Organization. He also served as the World Health Organization's Chief Epidemiologist for the Smallpox Eradication Program in Ethiopia from 1970 to 1976.
Dr. de Quadros is a leader in the development of successful surveillance and containment strategies for the eradication of smallpox worldwide, and has directed successful polio and measles eradication efforts in the Americas.
Dr. de Quadros serves as Associate Adjunct Professor at the Johns Hopkins School of Hygiene and Public Health in Baltimore, MD; and an Adjunct Professor in the Department of Tropical Medicine at The George Washington University School of Medicine and Health Sciences in Washington, DC. He completed his medical and public health studies in Brazil.
Jon Andrus returned to PAHO as head of the immunization program in February 2004 after a 10-year absence from the organization, having worked with Ciro de Quadros on the polio eradication campaign in the Americas from 1989 to 1993. A graduate of Stanford University, Andrus received his medical degree in 1979 from the University of California at Davis and practiced family medicine for two years in the National Health Service Corps. In 1985, he went to Africa with the Peace Corps. He later trained at the Centers for Disease Control and Prevention before joining PAHO's Expanded Program on Immunization, where he coordinated polio surveillance. In 1993, he became Southeast Asia regional coordinator for polio eradication for the World Health Organization in New Delhi and later served as chief of vaccines and biologicals for Southeast Asia. He is a commissioned officer in the United States Public Health Service and a recipient of the USPHS Distinguished Service Medal.