6MWT	6 Minute walking Test
8-OHdG	8′-hydroxy-2′-deoxyguanosine
Ad11	Adenovirus 11
Ad34	Adenovirus 34
Ad35	Adenovirus 35
ADL	Activities of Daily Living
AISI	Aggregate Index of Systemic Inflammation
ALBI	Albumin-Bilirubin Score
ALT	alanine aminotransferase
AST	aspartate aminotransferase
BDI-II	Beck Depression Inventory-II
BKPyV	BK Polyoma Virus
BMI	Body Mass Index
CD	Cluster of Differentiation
CES-D	Center for Epidemiologic Studies Depression Scale
CIRS	Cumulative Illness Rating Scale
CMV	Cytomegalovirus
COPD	Chronic Obstructive Pulmonary Disease
CRP	C reactive protein
DMSO	Dimethylsulfoxide
EBV	Epstein–Barr Virus
ESR	Erythrosedimentation rate
FBS	Foetal Bovine Serum
FEV1/FVC%	Forced Expiratory Volume in 1 s/Forced Vital Capacity
γGT	gamma-glutamyl transferase
GOLD	Global initiative for chronic Obstructive Lung Diseases
HHV-6	Human Herpes Virus-6
HHV-7	Human Herpes Virus-7
HSV-1	Human Herpes Simples-1
IADL	Instrumental Activities of Daily Living
IL-6	interleukine-6
JCPyV	JC Polyoma Virus
MDA	malondialdehyde
MLR	Monocytes to Lymphocytes Ratio
MMSE	Mini-Mental State Examination
MRC	modified Medical Research Council (Dyspnoea Scale)
MRF-26	Maugeri Respiratory Failure 26 questions
NLR	Neutrophils to Lymphocytes Ratio
PALBI	Platelet-Albumin-Bilirubin Score
PBMC	Peripheral Blood Mononuclear Cells
PBS	Phosphate-Buffered Saline
PLR	Platelets to Lymphocytes Ratio
PLT	platelets
PR	Pulmonary Rehabilitation
QoL	Quality of Life
RBC	Red Blood Cells
SF-36	36-Item Short Form Health Survey—General Health domain;
SII	Systemic Immune Inflammation Index
SIRI	Systemic Inflammation Response Index
TTV	Torque Teno Virus
VZV	Varicella Zoster Virus
WBC	white blood cells
ZUNG	Zung Self-Rating Depression Scale