Our team
Principal Investigator
Hannah Greenwald Healy, Ph.D.
Dr. Hannah Healy is an Assistant Professor of Environmental Health and Exposure Science within the Department of Environmental Health at the Harvard T.H. Chan School of Public Health. Hannah is from Atlanta, GA and received her B.S. in Environmental Engineering from Georgia Tech. She later received her M.S. and Ph.D. in Environmental Engineering from the University of California, Berkeley and was appointed as a Gaylord Donnelley Postdoctoral Associate in the Department of Chemical and Environmental Engineering at Yale University. Dr. Healy was a recipient of the NSF Graduate Research Fellowship, the NWRI WateReuse Fellowship, the AWWA American Water Scholarship, and the Berkeley CEE Outstanding Graduate Student Instructor Award.
Dr. Healy’s research focuses on pathogens and microbiomes of engineered water systems to inform water management/treatment, infectious disease surveillance, and healthcare infection prevention. She was inspired to study water and environmental exposures after a series of outbreaks of waterborne illness in her community while living in Panama. Outside of work, Hannah loves traveling, hiking, SciFi novels, and cozy coffee shops.
hannahhealy@hsph.harvard.edu — Catalyst Profile — Harvard Webpage
Postdoctoral Scholar
Amanda Darling, Ph.D.
Amanda earned her PhD in Civil Engineering (Environmental and Water Resources Engineering Program) at Virginia Tech in 2024. Amanda also completed a Master’s of Science in Environmental Engineering in 2020, and a Master of Public Health in 2023 from Virginia Tech. There, her primary dissertation work focused on advancing applications of wastewater-based surveillance to inform pathogen and antimicrobial resistance circulation in rural communities, dissertation title: “Advancing Rural Public Health: From Drinking Water Quality and Health Outcome Meta-analyses to Wastewater-based Pathogen Monitoring”. Prior to Virginia Tech, she attended the University of Illinois at Urbana-Champaign, graduating with a Bachelor’s degree in Civil & Environmental Engineering. In her free time, Amanda enjoys running and exploring new cities. Before entering the Healy lab, she was an ORISE research fellow in the Water Reuse program at the U.S. Environmental Protection Agency (EPA) in Washington, D.C. where she worked on advancing adoption of water reuse across the water sector.
Doctoral Student
Adinda Mirra Rahmani Taufik
Adinda Mirra Rahmani Taufik, also known as Dinda, is a Master of Science student in Environmental Health at the Harvard T.H. Chan School of Public Health, concentrating in Climate and Sustainability. Dinda is from Batujajar, West Java, Indonesia and earned her bachelor’s degree in Environmental Engineering from Bandung Institute of Technology, Indonesia focusing on solid waste and sanitation infrastructure. She previously worked in Indonesia’s public sector, where she helped expand rural sanitation and drinking water infrastructure to improve community health and reduce stunting. In her free time, she loves traveling, making art and creating contents and capturing everyday moments through her camera lens
Masters Student
Anna Impellitteri
Anna Impellitteri is a Population Health Sciences PhD student in the Department of Environmental Health at the Harvard T.H. Chan School of Public Health. Anna is from Hebron, Kentucky and received her B.S. in Environmental Science from Centre College. She received her MPH in Global Environmental Health from the Emory University Rollins School of Public Health, completing certificates in Water Sanitation and Hygiene (WASH) and Data Science.
During her time at Emory and in the Atlanta metro area, Anna worked in academic and non-profit laboratories developing digital PCR methods for applications in wastewater and distribution systems. She also contracted with the Waterborne Disease Prevention Branch in the Centers for Disease Control and Prevention, performing qualitative and quantitative data analysis to support and evaluate community-sensitive global WASH solutions. Her research interests include wastewater disease monitoring, reproducible data workflows, and water infrastructure in resource-limited settings. Outside of the lab, you can find Anna making homemade pasta, traveling, or rollerblading.
Masters Student
Charlie Wu
Charlie (Guanyi) Wu is a Master’s student in Environmental Health at the Harvard T.H. Chan School of Public Health. He received his B.S. in Biological Sciences from Cornell University. His academic interests include environmental health and water quality. Outside of his academic work, Charlie enjoys learning about different histories around the world and listening to K-pop.
Masters Student
Liz Druschel
Liz Druschel is a master’s student in the Department of Environmental Health at the Harvard T.H. Chan School of Public Health. Liz is from Beaver, Pennsylvania, and earned her B.S. in Biology from the Pennsylvania State University. Before coming to Harvard, she taught high school biology in Eastern, Kentucky as a member of Teach for America Appalachia and a Mountain Teacher Fellow. Her research interests include wastewater surveillance, water infrastructure in low-resource settings, and a just transition for Appalachian communities. Liz volunteers with young people and continues to tutor science and math. In her free time, she enjoys hiking, bird-watching, and exploring Boston.
Undergraduate Student
Mirari Ubani
Mirari is an undergraduate student at Harvard College aiming to concentrate in Anthropology and Chemistry. She has a keen interest in global and public health systems and is curious about wastewater surveillance research. Mirari is from Toronto, Canada and outside of academics, she likes to dance and crochet.
Undergraduate Student
Madeline Schaeffer
Madeline Schaeffer is an undergraduate student at Harvard College planning to concentrate in Integrative Biology with a secondary in Microbial Sciences. Her interests range from antimicrobial resistance to the effects of climate change on the transmission of pathogenic bacteria, as well as different methods of wastewater surveillance. Madeline is originally from Washington state, and in her free time, she enjoys hiking, birdwatching, writing poetry, and being a part of the Harvard Archery Club.
Previous Lab Members
Masters Students
Sen Wang
Sitara Sastry
Postdocs
David Lee
Undergraduate Researchers