In 1995 Chrysanthus received a degree of the Doctor of Science. Bachelor of Arts in Biology and Chemistry, Alabama State University, Montgomery, 1977. Doctor of Philosophy in Health Service Administration, Columbia Pacific University, San Rafael, California, 1982. Doctor of Medicine, University CIFAS, Santo Domingo, Dominican Republic, 1984. Master of Arts in Public Administration, Political Science, University Helsinki, Finland, 1991. Doctor of Science in Environmental Protection, University Helsinki, Finland, 1995.
Post doctoral research fellow Department Public Health Science, Health Care Administration University Helsinki, Finland, 1986-1988. Visiting senior research fellow Linköping (Sweden) University Teaching Hospital, 1988-1989. Senior postdoctoral research fellow National Public Health Institute, Helsinki, 1989-1993.
Consultant MacAlister, Elliott & Partners, Ltd., Hampshire, England, since 1994, Argisystems (Overseas) Ltd., Buckinghamshire, England, since 1994, Cargill Technology Services, Ltd., Surrey, England, since 1994, SEMA Group, Brussels, since 1994, Management Sciences for Health, Boston, since 1994, African Development Bank, Abidjan, Cote dil voire, since 1994.
Contributor articles to professional journals including International Journal Health Sciences, Diabetic Medicine, Cardiac Risk Factors, Journal Diabetes and its Complications, Environmental Education and Information Bulletin, Environmental Contaminating Toxicology, Toxicology and Environmental Chemistry, Environmental Health Perspective, Environmental Management Health, Agriculture, Ecosys. And Environment, Environmental Conservation, Water, Air and Soil Pollution, Ecotoxicology and Environmental Safety, Economic Planning in Free Societies, Journal for Agriculture and Related Studies, Journal Modern African Studies, International Journal Environmental Studies.