Joe has broad interests in water and sanitation technologies, environmental health microbiology and the role of infrastructure in protecting public health and well-being. His current research includes the use of fecal waste streams in public health surveillance; the development and application of novel tools to track pathogens in environmental media; and observational and experimental studies to estimate the effects of water, sanitation and hygiene interventions in controlling the transmission of infectious diseases. Currently Professor in the Department of Environmental Sciences and Engineering at UNC’s Gillings School of Global Public Health, he has held former faculty appointments at the Georgia Institute of Technology and the London School of Hygiene and Tropical Medicine. He is a licensed Professional Engineer (North Carolina and Alabama).