1. University of Zambia Ridgeway Campus, University of Zambia School of Public Health, Department of Environmental Health, Lusaka, Zambia
2. School of Public Health, Department of Environmental Health, University of Zambia Ridgeway Campus, Lusaka, Zambia
3. Ministry of Health, Lusaka District Medical Office, Lusaka, Zambia
4. American University, School of Public Affairs, Department of Law and Economics, Washington DC, USA
5. Center for Infectious Diseases Zambia, Lusaka, Zambia