AE	Adverse Event
AST	American Society of Transplantation
BKPyV	BK Polyomavirus
BKPyVN	BK Polyomavirus-Associated Nephropathy
BKPyV-HC	BK Polyomavirus-Associated Hemorrhagic Cystitis
CD4+	Cluster of Differentiation 4 Positive T Cell
CD8+	Cluster of Differentiation 8 Positive T Cell
CMV	Cytomegalovirus
CTL	Cytotoxic T Lymphocyte
DNA	Deoxyribonucleic Acid
DLI	Donor Lymphocyte Infusion
ECIL	European Conference on Infections in Leukaemia
GVHD	Graft-Versus-Host Disease
HBOT	Hyperbaric Oxygen Therapy
HC	Hemorrhagic Cystitis
HCT	Hematopoietic Cell Transplantation
IFN-γ	Interferon Gamma
IL-6	Interleukin-6
IL-11	Interleukin-11
IU/mL	International Units per Milliliter
IV	Intravenous
IVIG	Intravenous Immunoglobulin
JCPyV KDIGO	JC Polyomavirus Kidney Disease: Improving Global Outcomes
KGF	Keratinocyte Growth Factor
KTR	Kidney Transplant Recipients
MSCs	Mesenchymal Stromal Cells
MPyV	Murine Polyomavirus
PCR	Polymerase Chain Reaction
PDGF	Platelet-Derived Growth Factor
PGE2	Prostaglandin E2
PRISMA	Preferred Reporting Items for Systematic Reviews and Meta-Analyses
PRP	Platelet-Rich Plasma
PTCy	Post-Transplant Cyclophosphamide
qPCR	Quantitative Polymerase Chain Reaction
RCT	Randomized Controlled Trial
STAT3	Signal Transducer and Activator of Transcription 3
SVAE	Selective Vesical Artery Embolization
TGF-β	Transforming Growth Factor Beta
TNF-α	Tumor Necrosis Factor Alpha
WUPyV	WU Polyomavirus