I am an epidemiologist (disease detective) and pedologist (soil scientist) with academic training in public health (PhD & MPH), soil physics (MS), and agronomy (BS) improving public health and household livelihoods whille conserving natural resources.

Throughout my consulting and research career I have been part of interdisciplinary teams that promoted agriculture development, food security, and public health in low, medium, and high income countries. I find an interdisciplinary approach to complex problems very effective because takes into account the multiple dimensions of a problem, allows better framing of questions, and identification of solutions. An interdisciplinary approach to research promotes a fusion of ideas especially from emerging fields of science.

My interest in public health research stems from the disconnection between the effort to promote better household incomes and the effort to improve public health. The lack of integration between economic development and public health improvement unfortunately has led to the creation of unhealthy environments or unsustainable public health programs.

My research niche focuses on spatially dependent predictors and decision support, both domestically and internationally. My current research focuses on (1) disease prediction - assessing the spatial and temporal variability of pathogens in air, soil, and water to determine the likelihood of human exposures and to identify potential interventions that will diminish risks in occupational and non-occupational settings; and (2) climate change adaptation and mitigation, espeically though scientific and indigenous knowledge of soils.


  • Africa: Burkina Faso, Cameroon, Cape Verde, Chad, Ethiopia, Gambia, Ghana, Guinea, Kenya, Madagascar, Malawi, Mali, Mauritania, Mozambique, Niger, Rwanda, Senegal, Zambia, and Zimbabwe.
  • Asia: Indonesia, Israel, and Saudi Arabia.
  • Caribbean: Haiti.
  • Europe: France, and Italy.
  • N. America: United States.


School of Natural Resources and the Environment webpage http://www.snr.arizona.edu/

Environment, Exposure Science and Risk Assessment Center webpage http://esrac.arizona.edu/

Institute of the Environment webpage http://www.environment.arizona.edu/

TANGO International webpage http://www.tangointernational.com/

Valley Fever Center for Excellence webpage https://www.vfce.arizona.edu/