主题词：Viral gastroenteritis research and epidemiology; Hepatitis Viruses Studies and Epidemiology; Viral Infections and Immunology Research; Animal Virus Infections Studies; SARS-CoV-2 detection and testing; Virus-based gene therapy research; Respiratory viral infections research; Bacteriophages and microbial interactions; Infection Control and Ventilation; Animal Disease Management and Epidemiology; Fecal contamination and water quality; Salmonella and Campylobacter epidemiology; Liver Disease and Transplantation; SARS-CoV-2 and COVID-19 Research; Child Nutrition and Water Access; Veterinary medicine and infectious diseases; Biosensors and Analytical Detection; Listeria monocytogenes in Food Safety; Influenza Virus Research Studies; Infection Control in Healthcare; Plant Virus Research Studies; Advanced Thermodynamic Systems and Engines; Molecular Biology Techniques and Applications; Viral Infections and Vectors; COVID-19 epidemiological studies