主题词：Fecal contamination and water quality; Child Nutrition and Water Access; Water Treatment and Disinfection; Viral gastroenteritis research and epidemiology; Vibrio bacteria research studies; Wastewater Treatment and Reuse; Pharmaceutical and Antibiotic Environmental Impacts; Parasitic Infections and Diagnostics; Legionella and Acanthamoeba research; Water Quality and Pollution Assessment; Bacterial biofilms and quorum sensing; Antibiotic Resistance in Bacteria; SARS-CoV-2 detection and testing; Urban Stormwater Management Solutions; Groundwater and Isotope Geochemistry; Heavy metals in environment; Biosensors and Analytical Detection; Global Maternal and Child Health; Heavy Metal Exposure and Toxicity; Salmonella and Campylobacter epidemiology; Water resources management and optimization; Amoebic Infections and Treatments; Arsenic contamination and mitigation; Water Systems and Optimization; Climate Change and Health Impacts