K. K. Ballen, E. Gluckman, and H. E. Broxmeyer, Umbilical cord blood transplantation: the first 25 years and beyond, Blood, vol.122, issue.4, p.491, 2013.
DOI : 10.1182/blood-2013-02-453175

R. Danby and V. Rocha, Improving Engraftment and Immune Reconstitution in Umbilical Cord Blood Transplantation, Frontiers in Immunology, vol.5, issue.68, 2014.
DOI : 10.3389/fimmu.2014.00068

R. Parody, R. Martino, and M. Rovira, Severe Infections after Unrelated Donor Allogeneic Hematopoietic Stem Cell Transplantation in Adults: Comparison of Cord Blood Transplantation with Peripheral Blood and Bone Marrow Transplantation, Biology of Blood and Marrow Transplantation, vol.12, issue.7, p.734, 2006.
DOI : 10.1016/j.bbmt.2006.03.007

P. Ljungman, R. De-la-camara, and C. Cordonnier, Management of CMV, HHV-6, HHV-7 and Kaposi-sarcoma herpesvirus (HHV-8) infections in patients with hematological malignancies and after SCT, Bone Marrow Transplantation, vol.49, issue.4, p.42, 2008.
DOI : 10.1086/377268

J. Styczynski, P. Reusser, and H. Einsele, Management of HSV, VZV and EBV infections in patients with hematological malignancies and after SCT: guidelines from the, Second European Conference on Infections in Leukemia, pp.43-757, 2009.

H. Agut, P. Bonnafous, and A. , Gautheret-Dejean, Laboratory and clinical aspects of human herpesvirus 6 infections, Clin. Microbiol. Rev, pp.28-313, 2015.

P. Ljungman, M. Hakki, and M. Boeckh, Cytomegalovirus in hematopoietic stem cell transplant recipients, Hematol. Oncol. Clin. North Am, vol.25, issue.151, 2011.

Z. Peric, X. Cahu, and P. Chevallier, Features of Epstein-Barr Virus (EBV) reactivation after reduced intensity conditioning allogeneic hematopoietic stem cell transplantation, Leukemia, vol.95, issue.6, p.932, 2011.
DOI : 10.1038/sj.bmt.1704442

L. De, P. Silva, P. A. Patah, and R. M. Saliba, Hemorrhagic cystitis after allogeneic hematopoietic stem cell transplants is the complex result of BK virus infection, preparative regimen intensity and donor type, Haematologica, vol.95, p.1183, 2010.

M. Robin, S. Marque-juillet, and C. Scieux, Disseminated adenovirus infections after allogeneic hematopoietic stem cell transplantation: incidence, risk factors and outcome, Haematologica, vol.92, issue.9, p.1254, 2007.
DOI : 10.3324/haematol.11279

URL : http://www.haematologica.org/content/haematol/92/9/1254.full.pdf

P. Chevallier, I. Hebia-fellah, and L. Planche, Human herpes virus 6 infection is a hallmark of cord blood transplant in adults and may participate to delayed engraftment: a comparison with matched unrelated donors as stem cell source, Bone Marrow Transplantation, vol.100, issue.7, pp.45-1204, 2010.
DOI : 10.1002/jmv.20760

A. Yamane, T. Mori, and S. Suzuki, Risk Factors for Developing Human Herpesvirus 6 (HHV-6) Reactivation after Allogeneic Hematopoietic Stem Cell Transplantation and Its Association with Central Nervous System Disorders, Biology of Blood and Marrow Transplantation, vol.13, issue.1, 2007.
DOI : 10.1016/j.bbmt.2006.09.003

URL : https://doi.org/10.1016/j.bbmt.2006.09.003

M. E. Scheurer, J. C. Pritchett, E. S. Amirian, N. R. Zemke, P. Lusso et al., HHV-6 encephalitis in umbilical cord blood transplantation: a systematic review and meta-analysis, Bone Marrow Transplantation, vol.100, issue.4, 2012.
DOI : 10.1086/338044

URL : http://www.nature.com/bmt/journal/v48/n4/pdf/bmt2012180a.pdf

J. A. Hill, S. Koo, B. B. Guzman, and . Suarez, Cord-Blood Hematopoietic Stem Cell Transplant??Confers an Increased Risk for Human Herpesvirus-6-Associated Acute Limbic Encephalitis: A??Cohort Analysis, Biology of Blood and Marrow Transplantation, vol.18, issue.11, p.1638, 2012.
DOI : 10.1016/j.bbmt.2012.04.016

URL : https://doi.org/10.1016/j.bbmt.2012.04.016

H. Jeulin, N. Agrinier, and M. Guery, Human Herpesvirus 6 Infection After Allogeneic Stem Cell Transplantation, Transplantation Journal, vol.95, issue.10, p.1292, 2013.
DOI : 10.1097/TP.0b013e318289958b

URL : https://hal.archives-ouvertes.fr/hal-01483784

D. Blaise and L. Castagna, Do different conditioning regimens really make a difference? Hematol, Am. Soc. Hematol. Educ. Program, vol.237, p.2012, 2012.

A. Bacigalupo, K. Ballen, and D. Rizzo, Defining the Intensity of Conditioning Regimens: Working Definitions, Biology of Blood and Marrow Transplantation, vol.15, issue.12, p.1628, 2009.
DOI : 10.1016/j.bbmt.2009.07.004

URL : https://doi.org/10.1016/j.bbmt.2009.07.004

H. Glucksberg, R. Storb, and A. Fefer, CLINICAL MANIFESTATIONS OF GRAFT-VERSUS-HOST DISEASE IN HUMAN RECIPIENTS OF MARROW FROM HL-A-MATCHED SIBLING DONOR,S, Transplantation, vol.18, issue.4, p.295, 1974.
DOI : 10.1097/00007890-197410000-00001

S. Matthes-martin, T. Feuchtinger, and P. J. Shaw, European guidelines for diagnosis and treatment of adenovirus infection in leukemia and stem cell transplantation: summary of, Transpl. Inf. Dis, pp.14-555, 2011.

L. K. Dropulic and R. J. Jones, Polyomavirus BK infection in blood and marrow transplant recipients, Bone Marrow Transplantation, vol.345, issue.1, p.41, 2008.
DOI : 10.1099/0022-1317-78-3-659

URL : http://www.nature.com/bmt/journal/v41/n1/pdf/1705886a.pdf

A. Gautheret-dejean, C. Manichanh, and F. Thien-ah-koon, Development of a real-time polymerase chain reaction assay for the diagnosis of human herpesvirus-6 infection and application to bone marrow transplant patients, Journal of Virological Methods, vol.100, issue.1-2, 2002.
DOI : 10.1016/S0166-0934(01)00390-1

C. Bressollette-bodin, M. Coste-burel, B. Besse, E. André-garnier, V. Ferre et al., Cellular normalization of viral DNA loads on whole blood improves the clinical management of cytomegalovirus or Epstein Barr virus infections in the setting of pre-emptive therapy, Journal of Medical Virology, vol.37, issue.1, pp.81-90, 2009.
DOI : 10.1038/sj.bmt.1705289

C. Bressollette-bodin, M. Coste-burel, M. Hourmant, V. Sebille, E. Andre-garnier et al., A Prospective Longitudinal Study of BK Virus Infection in 104 Renal Transplant Recipients, American Journal of Transplantation, vol.38, issue.8, 1926.
DOI : 10.1046/j.1523-1755.2003.00132.x

URL : http://onlinelibrary.wiley.com/doi/10.1111/j.1600-6143.2005.00934.x/pdf

]. A. Heim, C. Ebnet, G. Harste, and P. , Pring-Akerblom, Rapid and quantitative detection of human adenovirus DNA by real-time PCR, J. Med. Virol, vol.228, p.70, 2003.

C. Oudin, P. Chevallier, and S. Furst, Reduced-toxicity conditioning prior to allogeneic stem cell transplantation improves outcome in patients with myeloid malignancies, Haematologica, vol.99, issue.11, p.1762, 2014.
DOI : 10.3324/haematol.2014.105981

URL : https://hal.archives-ouvertes.fr/hal-01325488

P. Chevallier, M. Labopin, and G. Socié, Results from a clofarabine-busulfan-containing, reduced-toxicity conditioning regimen prior to allogeneic stem cell transplantation: the phase 2 prospective CLORIC trial, Haematologica, vol.99, issue.9, pp.1486-1491, 2014.
DOI : 10.3324/haematol.2014.108563

URL : https://hal.archives-ouvertes.fr/hal-01325352

C. G. Brunstein, J. N. Barker, and D. J. Weisdorf, Umbilical cord blood transplantation after nonmyeloablative conditioning: impact on transplantation outcomes in 110 adults with hematologic disease, Blood, vol.110, issue.8, 2007.
DOI : 10.1182/blood-2007-04-067215

URL : http://www.bloodjournal.org/content/bloodjournal/110/8/3064.full.pdf

D. M. Ponce, C. Sauter, and S. Devlin, A Novel Reduced-Intensity Conditioning Regimen Induces a High Incidence of Sustained Donor-Derived Neutrophil and Platelet Engraftment after Double-Unit Cord Blood Transplantation, Biology of Blood and Marrow Transplantation, vol.19, issue.5, p.799, 2013.
DOI : 10.1016/j.bbmt.2013.02.007

URL : https://doi.org/10.1016/j.bbmt.2013.02.007

A. L. Bourgeois, C. Mohr, and T. Guillaume, Comparison of Outcomes after Two Standards-of-Care Reduced-Intensity Conditioning Regimens and Two Different Graft Sources for Allogeneic Stem Cell Transplantation in Adults with Hematologic Diseases: A Single-Center Analysis, Biology of Blood and Marrow Transplantation, vol.19, issue.6, p.934, 2013.
DOI : 10.1016/j.bbmt.2013.03.009

R. Peffault-de-latour, C. G. Brunstein, and R. Porcher, Similar Overall Survival Using Sibling, Unrelated Donor, and Cord Blood Grafts after Reduced-Intensity Conditioning for Older Patients with Acute Myelogenous Leukemia, Biology of Blood and Marrow Transplantation, vol.19, issue.9, pp.1355-1360, 2013.
DOI : 10.1016/j.bbmt.2013.06.006

M. Illiaquer, F. Malard, and T. Guillaume, Long-Lasting HHV-6 Reactivation in Long-Term Adult Survivors After Double Umbilical Cord Blood Allogeneic Stem Cell Transplantation, The Journal of Infectious Diseases, vol.18, issue.4, p.210, 2014.
DOI : 10.1016/j.bbmt.2012.06.005

URL : https://academic.oup.com/jid/article-pdf/210/4/567/18070027/jiu129.pdf

H. Tang, S. Serada, and A. Kawabata, CD134 is a cellular receptor specific for human herpesvirus-6B entry, Proceedings of the National Academy of Sciences, vol.27, issue.10, pp.110-9096, 2013.
DOI : 10.1021/ac950914h

URL : http://www.pnas.org/content/110/22/9096.full.pdf

B. M. Imbert-marcille, X. W. Tang, and D. Lepelletier, Human Herpesvirus 6 Infection after Autologous or Allogeneic Stem Cell Transplantation: A Single???Center Prospective Longitudinal Study of 92 Patients, Clinical Infectious Diseases, vol.176, issue.4, pp.31-881, 2000.
DOI : 10.1086/517301

D. Boutolleau, C. Fernandez, and E. André, Human Herpesvirus (HHV)???6 and HHV???7: Two Closely Related Viruses with Different Infection Profiles in Stem Cell Transplantation Recipients, The Journal of Infectious Diseases, vol.187, issue.2, 2003.
DOI : 10.1086/367677

URL : https://academic.oup.com/jid/article-pdf/187/2/179/18008854/187-2-179.pdf

R. Dulery, J. Salleron, and A. Dewilde, Early Human Herpesvirus Type 6 Reactivation after Allogeneic Stem Cell Transplantation: A Large-Scale Clinical Study, Biology of Blood and Marrow Transplantation, vol.18, issue.7, p.1080, 2012.
DOI : 10.1016/j.bbmt.2011.12.579

URL : https://doi.org/10.1016/j.bbmt.2011.12.579

P. J. De-pagter, R. Schuurman, and L. Keukens, Human herpes virus 6 reactivation: important predictor for poor outcome after myeloablative, but not nonmyeloablative allo-SCT Bone Marrow, Transplant, vol.48, pp.1460-1464, 2013.

L. Pascal, L. Tucunduva, and A. Ruggeri, Impact of ATG-containing reduced-intensity conditioning after single- or double-unit allogeneic cord blood transplantation, Blood, vol.126, issue.8, p.1027, 2015.
DOI : 10.1182/blood-2014-09-599241

URL : http://www.bloodjournal.org/content/126/8/1027.full.pdf

A. L. Olson, P. B. Dahi, and J. Zheng, Frequent Human Herpesvirus-6 Viremia But Low Incidence of Encephalitis in Double-Unit Cord Blood Recipients Transplanted Without Antithymocyte Globulin, Biology of Blood and Marrow Transplantation, vol.20, issue.6, p.787, 2014.
DOI : 10.1016/j.bbmt.2014.02.010

URL : https://doi.org/10.1016/j.bbmt.2014.02.010

T. Crough and R. Khanna, Immunobiology of Human Cytomegalovirus: from Bench to Bedside, Clinical Microbiology Reviews, vol.22, issue.1, p.76, 2009.
DOI : 10.1128/CMR.00034-08

URL : http://cmr.asm.org/content/22/1/76.full.pdf

C. M. Walker, J. H. Van-burik, T. E. De-for, and D. J. Weisdorf, Cytomegalovirus Infection after Allogeneic Transplantation: Comparison of Cord Blood with Peripheral Blood and Marrow Graft Sources, Biology of Blood and Marrow Transplantation, vol.13, issue.9, p.1106, 2007.
DOI : 10.1016/j.bbmt.2007.06.006

URL : https://doi.org/10.1016/j.bbmt.2007.06.006

T. Matsumura, H. Narimatsu, and M. Kami, Cytomegalovirus Infections following Umbilical Cord Blood Transplantation Using Reduced Intensity Conditioning Regimens for Adult Patients, Biology of Blood and Marrow Transplantation, vol.13, issue.5, 2007.
DOI : 10.1016/j.bbmt.2006.12.454

URL : https://doi.org/10.1016/j.bbmt.2006.12.454

J. Gaziev, P. Paba, and R. Miano, Late-Onset Hemorrhagic Cystitis in Children after Hematopoietic Stem Cell Transplantation for Thalassemia and Sickle Cell Anemia: A Prospective Evaluation of Polyoma (BK) Virus Infection and Treatment with Cidofovir, Biology of Blood and Marrow Transplantation, vol.16, issue.5, 2010.
DOI : 10.1016/j.bbmt.2009.12.009

C. G. Brunstein, D. J. Weisdorf, and T. Defor, Marked increased risk of Epstein-Barr virus-related complications with the addition of antithymocyte globulin to a nonmyeloablative conditioning prior to unrelated umbilical cord blood transplantation, Blood, vol.108, issue.8, p.2874, 2006.
DOI : 10.1182/blood-2006-03-011791

A. Papadopoulou, U. Gerdemann, and U. L. Katari, Activity of broad-spectrum T cells as treatment for, Sci. Transl. Med, 2014.
DOI : 10.1126/scitranslmed.3008825

URL : http://europepmc.org/articles/pmc4181611?pdf=render

J. Kanda, L. Chiou, and P. Szabolcs, Immune Recovery in Adult Patients after Myeloablative Dual Umbilical Cord Blood, Matched Sibling, and Matched Unrelated Donor Hematopoietic Cell Transplantation, Biology of Blood and Marrow Transplantation, vol.18, issue.11, p.1664, 2012.
DOI : 10.1016/j.bbmt.2012.06.005

URL : https://doi.org/10.1016/j.bbmt.2012.06.005

C. A. Jacobson, A. T. Turki, and S. M. Mcdonough, Immune Reconstitution after Double Umbilical Cord Blood Stem Cell Transplantation: Comparison with Unrelated Peripheral Blood Stem Cell Transplantation, Biology of Blood and Marrow Transplantation, vol.18, issue.4, p.565, 2012.
DOI : 10.1016/j.bbmt.2011.08.018

URL : https://doi.org/10.1016/j.bbmt.2011.08.018

A. L. Bourgeois, E. Lestang, and T. Guillaume, Prognostic impact of immune status and hematopoietic recovery before and after fludarabine, IV busulfan, and antithymocyte globulins (FB2 regimen) reduced-intensity conditioning regimen (RIC) allogeneic stem cell transplantation (allo-SCT), European Journal of Haematology, vol.38, issue.3, p.90, 2013.
DOI : 10.3109/10428190009087014

M. Illiaquer, Impact of stem cell graft on early viral infections and immune reconstitution after allogeneic transplantation in adults, Journal of Clinical Virology, vol.93, pp.30-36, 2017.
DOI : 10.1016/j.jcv.2017.05.019

URL : https://hal.archives-ouvertes.fr/inserm-01819344