D. Wiley, J. Skehel, and M. Waterfield, Evidence from studies with a cross-linking reagent that the haemagglutinin of influenza virus is a trimer, Virology, vol.79, issue.2, pp.446-448, 1977.
DOI : 10.1016/0042-6822(77)90371-3

I. Wilson, J. Skehel, and D. Wiley, Structure of the haemagglutinin membrane glycoprotein of influenza virus at 3 ??? resolution, Nature, vol.75, issue.5796, pp.366-373, 1981.
DOI : 10.1038/289366a0

G. Rogers, J. Paulson, R. Daniels, J. Skehel, and I. Wilson, Single amino acid substitutions in influenza haemagglutinin change receptor binding specificity, Nature, vol.10, issue.5921, pp.76-78, 1983.
DOI : 10.1038/304076a0

Y. Suzuki, T. Ito, T. Suzuki, R. Holland, . Jr et al., Sialic Acid Species as a Determinant of the Host Range of Influenza A Viruses, Journal of Virology, vol.74, issue.24, pp.11825-11831, 2000.
DOI : 10.1128/JVI.74.24.11825-11831.2000

A. Gambaryan, S. Yamnikova, D. Lvov, A. Tuzikov, and A. Chinarev, Receptor specificity of influenza viruses from birds and mammals: new data on involvement of the inner fragments of the carbohydrate chain, Virology, vol.334, issue.2, pp.276-283, 2005.
DOI : 10.1016/j.virol.2005.02.003

K. Matlin, H. Reggio, A. Helenius, and K. Simons, Infectious entry pathway of influenza virus in a canine kidney cell line, The Journal of Cell Biology, vol.91, issue.3, pp.601-613, 1981.
DOI : 10.1083/jcb.91.3.601

M. Rust, M. Lakadamyali, F. Zhang, and X. Zhuang, Assembly of endocytic machinery around individual influenza viruses during viral entry, Nature Structural & Molecular Biology, vol.20, issue.6, pp.567-573, 2004.
DOI : 10.1126/science.1092586

R. Russell, L. Haire, D. Stevens, P. Collins, and Y. Lin, The structure of H5N1 avian influenza neuraminidase suggests new opportunities for drug design, Nature, vol.232, issue.7107, pp.45-49, 2006.
DOI : 10.1107/S0108767390010224

P. Yang, A. Bansal, C. Liu, and G. Air, Hemagglutinin Specificity and Neuraminidase Coding Capacity of Neuraminidase-Deficient Influenza Viruses, Virology, vol.229, issue.1, pp.155-165, 1997.
DOI : 10.1006/viro.1996.8421

M. Matrosovich, T. Matrosovich, T. Gray, N. Roberts, and H. Klenk, Neuraminidase Is Important for the Initiation of Influenza Virus Infection in Human Airway Epithelium, Journal of Virology, vol.78, issue.22, pp.12665-12667, 2004.
DOI : 10.1128/JVI.78.22.12665-12667.2004

I. Huang, W. Li, J. Sui, W. Marasco, and H. Choe, Influenza A Virus Neuraminidase Limits Viral Superinfection, Journal of Virology, vol.82, issue.10, pp.4834-4843, 2008.
DOI : 10.1128/JVI.00079-08

A. Harris, G. Cardone, D. Winkler, J. Heymann, and M. Brecher, Influenza virus pleiomorphy characterized by cryoelectron tomography, Proceedings of the National Academy of Sciences, vol.103, issue.50, pp.19123-19127, 2006.
DOI : 10.1073/pnas.0607614103

M. Matrosovich, T. Matrosovich, T. Gray, N. Roberts, and H. Klenk, Human and avian influenza viruses target different cell types in cultures of human airway epithelium, Proceedings of the National Academy of Sciences, vol.101, issue.13, pp.4620-4624, 2004.
DOI : 10.1073/pnas.0308001101

M. Ohuchi, N. Asaoka, T. Sakai, and R. Ohuchi, Roles of neuraminidase in the initial stage of influenza virus infection, Microbes and Infection, vol.8, issue.5, pp.1287-1293, 2006.
DOI : 10.1016/j.micinf.2005.12.008

A. Albright, E. Lavi, J. Black, S. Goldberg, O. Connor et al., The Effect of Human Herpesvirus-6 (HHV-6) on Cultured Human Neural Cells: Oligodendrocytes and Microglia, Journal of Neurovirology, vol.4, issue.5, pp.486-494, 1998.
DOI : 10.3109/13550289809113493

S. Bar, A. Takada, Y. Kawaoka, and M. Alizon, Detection of Cell-Cell Fusion Mediated by Ebola Virus Glycoproteins, Journal of Virology, vol.80, issue.6, pp.2815-2822, 2006.
DOI : 10.1128/JVI.80.6.2815-2822.2006

N. Davis-poynter, S. Bell, T. Minson, and H. Browne, Analysis of the contributions of herpes simplex virus type 1 membrane proteins to the induction of cell-cell fusion, J Virol, vol.68, pp.7586-7590, 1994.

M. Kobayashi, M. Bennett, T. Bercot, and I. Singh, Functional Analysis of Hepatitis C Virus Envelope Proteins, Using a Cell-Cell Fusion Assay, Journal of Virology, vol.80, issue.4, pp.1817-1825, 2006.
DOI : 10.1128/JVI.80.4.1817-1825.2006

J. Chen, K. Lee, D. Steinhauer, D. Stevens, and J. Skehel, Structure of the Hemagglutinin Precursor Cleavage Site, a Determinant of Influenza Pathogenicity and the Origin of the Labile Conformation, Cell, vol.95, issue.3, pp.409-417, 1998.
DOI : 10.1016/S0092-8674(00)81771-7

T. Horimoto, K. Nakayama, S. Smeekens, and Y. Kawaoka, Proproteinprocessing endoproteases PC6 and furin both activate hemagglutinin of virulent avian influenza viruses, J Virol, vol.68, pp.6074-6078, 1994.

M. Matrosovich and H. Klenk, Natural and synthetic sialic acid-containing inhibitors of influenza virus receptor binding, Reviews in Medical Virology, vol.55, issue.2, pp.85-97, 2003.
DOI : 10.1002/rmv.372

J. Sun, B. Barbeau, S. Sato, and M. Tremblay, Neuraminidase from a Bacterial Source Enhances Both HIV-1-Mediated Syncytium Formation and the Virus Binding/Entry Process, Virology, vol.284, issue.1, pp.26-36, 2001.
DOI : 10.1006/viro.2001.0889

J. Sun, B. Barbeau, S. Sato, G. Boivin, and N. Goyette, Syncytium Formation and HIV-1 Replication Are Both Accentuated by Purified Influenza and Virus-associated Neuraminidase, Journal of Biological Chemistry, vol.277, issue.12, pp.9825-9833, 2002.
DOI : 10.1074/jbc.M110764200

D. Vigerust and V. Shepherd, Virus glycosylation: role in virulence and immune interactions, Trends in Microbiology, vol.15, issue.5, pp.211-218, 2007.
DOI : 10.1016/j.tim.2007.03.003

Y. Kawaoka and R. Webster, Interplay between carbohydrate in the stalk and the length of the connecting peptide determines the cleavability of influenza virus hemagglutinin, J Virol, vol.63, pp.3296-3300, 1989.

D. Lewis, Avian Flu to Human Influenza, Annual Review of Medicine, vol.57, issue.1, pp.139-154, 2006.
DOI : 10.1146/annurev.med.57.121304.131333

Y. Suzuki, Sialobiology of Influenza: Molecular Mechanism of Host Range Variation of Influenza Viruses, Biological and Pharmaceutical Bulletin, vol.28, issue.3, pp.399-408, 2005.
DOI : 10.1248/bpb.28.399

Y. Shtyrya, L. Mochalova, G. Voznova, I. Rudneva, and A. Shilov, Adjustment of receptor-binding and neuraminidase substrate specificties in avian???human reassortant influenza viruses, Glycoconjugate Journal, vol.12, issue.1, pp.99-109, 2009.
DOI : 10.1007/s10719-008-9169-x

M. Matrosovich, T. Matrosovich, J. Carr, N. Roberts, and H. Klenk, Overexpression of the ??-2,6-Sialyltransferase in MDCK Cells Increases Influenza Virus Sensitivity to Neuraminidase Inhibitors, Journal of Virology, vol.77, issue.15, pp.8418-8425, 2003.
DOI : 10.1128/JVI.77.15.8418-8425.2003

Z. Li, H. Chen, P. Jiao, G. Deng, and G. Tian, Molecular Basis of Replication of Duck H5N1 Influenza Viruses in a Mammalian Mouse Model, Journal of Virology, vol.79, issue.18, pp.12058-12064, 2005.
DOI : 10.1128/JVI.79.18.12058-12064.2005

M. Rameix-welti, F. Agou, P. Buchy, S. Mardy, and J. Aubin, Natural Variation Can Significantly Alter the Sensitivity of Influenza A (H5N1) Viruses to Oseltamivir, Antimicrobial Agents and Chemotherapy, vol.50, issue.11, pp.3809-3815, 2006.
DOI : 10.1128/AAC.00645-06
URL : https://hal.archives-ouvertes.fr/hal-00140259

F. Clavel and P. Charneau, Fusion from without directed by human immunodeficiency virus particles, J Virol, vol.68, pp.1179-1185, 1994.

B. Labrosse, A. Brelot, N. Heveker, N. Sol, and D. Schols, Determinants for sensitivity of human immunodeficiency virus coreceptor CXCR4 to the bicyclam AMD3100, J Virol, vol.72, pp.6381-6388, 1998.

T. Neumann, I. Hagmann, S. Lohrengel, M. Heil, and C. Derdeyn, T20-insensitive HIV-1 from na??ve patients exhibits high viral fitness in a novel dual-color competition assay on primary cells, Virology, vol.333, issue.2, pp.251-262, 2005.
DOI : 10.1016/j.virol.2004.12.035