1. Department of Biological, Environmental and Occupational Health Sciences School of Public Health University of Ghana Accra Ghana
2. Department of Environmental Science Kwame Nkrumah University of Science and Technology Kumasi Ghana
3. Department of Biostatistics School of Public Health University of Ghana Legon Ghana
4. Department of Animal Biology and Conservation Science University of Ghana Accra Ghana
5. Parasitology Department Noguchi Memorial Institute for Medical Research University of Ghana Accra Ghana
6. Department of Environmental Health Sciences University of Michigan Ann Arbor Michigan USA