1. Training Programs, Graduate School Kenya Medical Research Institute Nairobi Kenya
2. Environmental Health Research Unit Centre for Public Health Research, Kenya Medical Research Institute Nairobi Kenya
3. Department of Environmental Health and Disease Control Jomo Kenyatta University of Agriculture and Technology Juja Kenya
4. Department of Psychiatry University of Nairobi Nairobi Kenya
5. Masters in Global Health Program University of Maryland Graduate School Baltimore Maryland USA