主题词：Renal Transplantation Outcomes and Treatments; Organ Transplantation Techniques and Outcomes; Organ Donation and Transplantation; Liver Disease and Transplantation; Renal and Vascular Pathologies; Transplantation: Methods and Outcomes; Cytomegalovirus and herpesvirus research; Polyomavirus and related diseases; Viral-associated cancers and disorders; Hepatocellular Carcinoma Treatment and Prognosis; Renal Diseases and Glomerulopathies; Organ and Tissue Transplantation Research; Neurological Complications and Syndromes; Liver Disease Diagnosis and Treatment; Hematopoietic Stem Cell Transplantation; Hepatitis C virus research; Antifungal resistance and susceptibility; Dialysis and Renal Disease Management; COVID-19 Clinical Research Studies; SARS-CoV-2 and COVID-19 Research; Mechanical Circulatory Support Devices; Liver Diseases and Immunity; Pneumocystis jirovecii pneumonia detection and treatment; Parvovirus B19 Infection Studies; Hepatitis B Virus Studies