Nepal 68 prevention & control 41 Health aspects 38 Public Health 38 standards 38 Environmental health 37 Environmental aspects 36 Gezondheid 36 Pollution 36 Quality Control 36 Water 36 Water Microbiology 36 Water Pollution 36 Water Supply 36 Water quality 36 Water quality management 36 Knowledge 8 Children 7 methods 6 Kathmandu 5 Epidemiology 4 Mortality 4 Adolescent 3 COVID-19 3 Cancer 3 Drug Therapy 3 Drugs 3 Environmental Health 3 HIV/AIDS 3 Health education 3