Yarrow is a PhD candidate in the ESE department at the Gillings School of Global Public Health, with research interests in Water, Sanitation and Hygiene for development. She received her B.S. in Environmental Health from the University of Washington, where she conducted water microbiology laboratory research, including method development for detection of enteric pathogens. Following graduation she served as a health volunteer in the Peace Corps in Tanzania, inspiring further global health work. Yarrow’s graduate research involves the Maputo Sanitation (MapSan) and PAASIM trials, estimating health risks from exposure to waterborne pathogens in drinking water. She is a National Science Foundation Graduate Research Fellow.