Doctor Ananda Tiwari, PhD, is a water health microbiologist. Currently, he is working as a postdoctoral researcher in the Expert Microbiology Research Unit of the Finnish Institute for Health and Welfare, Kuopio Finland. He did his doctoral study in monitoring microbial quality of bathing water. His research interest includes indicator bacteria (Escherichia coli and intestinal enterococci), microbial source tracking, virus indicators, beach monitoring, Vibrio cholera, Cyanobacteria, microbial ecology, antibiotic-resistant bacteria/genes, wastewater-based epidemiology, drinking water distribution system, and biofilm production.
	Associate Professor David Oliver, PhD, is an Associate Professor of Catchment Science based at the University of Stirling UK, where he has worked for the last 10 years. He completed his BSc and PhD at the University of Sheffield, UK. His broad research interests cover the connections between land, water and people, in particular the impact of the environment on people’s health. Current research focus includes fate and transfer dynamics of diffuse pollutants, managing competing demands on soil and water resources in catchments to benefit public health, healthy and resilient bathing water environments and the co-design of decision support systems to visualise risks to water quality across multiple scales.
	Doctor Aaron Bivins, PhD, is a post-doctoral research associate in the Department of Civil and Environmental Engineering and Earth Sciences at the University of Notre, Notre Dame, Indiana, USA. He is a public health engineer interested in the transmission of human pathogens via environmental and engineered systems. His work includes the use of environmental microbiology techniques to detect and quantify rare pathogens, quantitative microbial risk assessment to estimate risks to human health, and BioRender to create compelling scientific illustrations.
	Assistant Professor Samendra P. Sherchan, PhD, is currently an assistant professor in the department of environmental health sciences at Tulane University. He received his PhD from the University of Arizona under Drs. Charles Gerba, Ian Pepper and Shane Snyder. He began studying environmental virology in graduate school where he worked on virus treatment for water reuse. He has been working primarily at better understanding the survival, fate and transport of emerging viruses in natural and engineered water systems. His research interests include environmental virology, one health, diarrheal diseases, water reuse, water quality, sanitation, and hygiene in developing counties. He currently serves as an associate editor for the Journal ofWater and Health and BMC Infectious Diseases. He is also on the editorial boards of ACS Water and Science of the Total Environment.
	Associate Professor Tarja Pitkänen, PhD , has a broad expertise on detection methods and infection risk assessment of microbes in water. She works as a Chief Specialist at the Water Microbiology Laboratory, Finnish Institute for Health and Welfare, Finland. Since 1.10.2020, she has co-affiliation as Associate Professor in the field of Environmental Health at the University of Helsinki as a part of HOH Helsinki One Health Network. Tarja Pitkänen conducts research and expertise tasks related to waterborne outbreak preparedness for fecal contamination and microbial water safety research with her team members and PhD students. She is adjunct Professor in Molecular water microbiology at the University of Eastern Finland, where she gained a PhD on Environmental microbiology in 2010. In 2012-2013, she was a researcher at the National Risk Management Research Laboratory of the United States Environmental Protection Agency, USA where she focused her research on molecular detection, next-generation sequencing tools and the characterization of active bacterial communities in water. Currently she is involved in several research projects and international expert duties related to the water microbiology.