Veterinary degree, Faculty of Veterinary Medicine, Quito, Ecuador, 1964. Veterinary degree, Royal Veterinary College, Stockholm, 1971. Doctor of Philosophy, Swedish University Agriculture, Uppsala, 1977.
Radio and tv journalist, HCJB-television 4, Quito, 1962-1964; radio journalist, Radio Sweden, Stockholm, 1967-1974; scientist, National Veterinary Institute, Stockholm, 1970-1977; from scientist to associate professor, Swedish U. Agriculture Sciences, Uppsala, 1977-1990; regional expert for Latin American, International Atomic Energy Agency, Vienna, Austria, 1990-1994; head department veterinary microbiology, biomedical Center, Uppsala, since 1995. Consultant International Foundation for Science, Stockholm, since 1985, United Nations Food and Agriculture Organisation, Stockholm, since 1976, Swedish Agency for Research Cooperative, Stockholm, since 1985 (grant since 1986).
Member Swedish Veterinary Association, New York Academy of Sciences, Swedish Agency for Research Cooperation.
Married Lilian Margareta Pettersson, April 2, 1969. Children: Patric, Jessica, Daniel.