M. Castrucci, I. Donatelli, L. Sidoli, G. Barigazzi, Y. Kawaoka et al., Genetic Reassortment between Avian and Human Influenza A Viruses in Italian Pigs, Virology, vol.193, issue.1, pp.503-506, 1993.
DOI : 10.1006/viro.1993.1155

W. Ma, R. Kahn, and J. Richt, The pig as a mixing vessel for influenza viruses: Human and veterinary implications, Journal of Molecular and Genetic Medicine, vol.03, issue.01, pp.158-166, 2009.
DOI : 10.4172/1747-0862.1000028

C. Scholtissek, J. Stech, S. Krauss, and R. Webster, Cooperation between the Hemagglutinin of Avian Viruses and the Matrix Protein of Human Influenza A Viruses, Journal of Virology, vol.76, issue.4, pp.1781-1786, 2002.
DOI : 10.1128/JVI.76.4.1781-1786.2002

R. Garten, C. Davis, and C. Russell, Antigenic and Genetic Characteristics of Swine-Origin 2009 A(H1N1) Influenza Viruses Circulating in Humans, Science, vol.325, issue.5937, pp.197-201, 2009.
DOI : 10.1126/science.1176225

J. Peiris, L. Poon, and Y. Guan, Emergence of a novel swine-origin influenza A virus (S-OIV) H1N1 virus in humans, Journal of Clinical Virology, vol.45, issue.3, pp.169-173, 2009.
DOI : 10.1016/j.jcv.2009.06.006
URL : https://hal.archives-ouvertes.fr/pasteur-00588939

G. Smith, D. Vijaykrishna, and J. Bahl, Origins and evolutionary genomics of the 2009 swine-origin H1N1 influenza A epidemic, Nature, vol.22, issue.7250, pp.1122-1125, 2009.
DOI : 10.1038/nature08182

H. Zhu, B. Zhou, and X. Fan, Novel Reassortment of Eurasian Avian-Like and Pandemic/2009 Influenza Viruses in Swine: Infectious Potential for Humans, Journal of Virology, vol.85, issue.20, pp.10432-10439, 2011.
DOI : 10.1128/JVI.05352-11

M. Song, J. Lee, and P. Pascua, Evidence of Human-to-Swine Transmission of the Pandemic (H1N1) 2009 Influenza Virus in South Korea, Journal of Clinical Microbiology, vol.48, issue.9, pp.3204-3211, 2010.
DOI : 10.1128/JCM.00053-10

K. Howden, E. Brockhoff, and F. Caya, An investigation into human pandemic influenza virus (H1N1) 2009 on an Alberta swine farm, Can Vet J, vol.50, pp.1153-1161, 2009.

S. Brookes and I. Brown, A/H1N1/pdm09 virus: dynamics of infection in pigs and people, Veterinary Record, vol.169, issue.6, pp.151-152, 2011.
DOI : 10.1136/vr.d4945

T. Pasma and T. Joseph, Pandemic (H1N1) 2009 Infection in Swine Herds, Manitoba, Canada, Emerging Infectious Diseases, vol.16, issue.4, pp.706-708, 2010.
DOI : 10.3201/eid1604.091636

A. Pereda, J. Cappuccio, and M. Quiroga, Pandemic (H1N1) 2009 Outbreak on Pig Farm, Argentina, H1N1) 2009 outbreak on pig farm, pp.304-307, 2010.
DOI : 10.3201/eid1602.091230

E. Lange, D. Kalthoff, and U. Blohm, Pathogenesis and transmission of the novel swine-origin influenza virus A/H1N1 after experimental infection of pigs, Journal of General Virology, vol.90, issue.9, pp.2119-2123, 2009.
DOI : 10.1099/vir.0.014480-0

S. Brookes, R. Irvine, and A. Nunez, Influenza A (H1N1) infection in pigs, Veterinary Record, vol.164, issue.24, pp.760-761, 2009.
DOI : 10.1136/vr.164.24.760
URL : https://hal.archives-ouvertes.fr/hal-01390764

S. Brookes and I. Brown, A/H1N1/pdm09 virus: dynamics of infection in pigs and people, Veterinary Record, vol.169, issue.6, pp.151-152, 2011.
DOI : 10.1136/vr.d4945

M. Ducatez, B. Hause, and E. Stigger-rosser, Multiple Reassortment between Pandemic (H1N1) 2009 and Endemic Influenza Viruses in Pigs, United States, Emerging Infectious Diseases, vol.17, issue.9, pp.1624-1629, 2011.
DOI : 10.3201/1709.110338

D. Sun, K. Schwartz, G. Janke, D. Haney, S. Block et al., Occurrence of novel reassortants between North American swine influenza virus and pandemic 2009 H1N1 virus in US swine, American Society for Virology 30th Annual Meeting, 2011.

E. Starick, E. Lange, and S. Fereidouni, Reassorted pandemic (H1N1) 2009 influenza A virus discovered from pigs in Germany, Journal of General Virology, vol.92, issue.5, pp.1184-1188, 2011.
DOI : 10.1099/vir.0.028662-0

W. Howard, S. Essen, and B. Strugnell, Reassortant Pandemic (H1N1) 2009 Virus in Pigs, United Kingdom, Emerging Infectious Diseases, vol.17, issue.6, pp.1049-1052, 2011.
DOI : 10.3201/eid/1706.101886

P. Kitikoon, D. Sreta, N. Ayudhya, and S. , Brief report: molecular characterization of a novel reassorted pandemic H1N1 2009 in Thai pigs, Virus Genes, vol.2, issue.1, pp.1-5, 2011.
DOI : 10.1007/s11262-011-0597-5

A. Moreno, D. Trani, L. Faccini, and S. , Novel H1N2 swine influenza reassortant strain in pigs derived from the pandemic H1N1/2009 virus, Veterinary Microbiology, vol.149, issue.3-4, pp.472-477, 2011.
DOI : 10.1016/j.vetmic.2010.12.011
URL : https://hal.archives-ouvertes.fr/hal-00683507

D. Vijaykrishna, L. Poon, and H. Zhu, Reassortment of pandemic H1N1 ? 2009 influenza A virus in swine Update: influenza A (H3N2)v transmission and guidelines ? Five States, Science MMWR, vol.328, issue.60, pp.1529-1552, 2010.

T. Huynh, A. Aarnink, A. Drucker, and M. Verstegen, Pig production in Cambodia, Laos, Philippines, and Vietnam: a review, Asian J Agric Dev, vol.4, pp.69-90, 2007.

P. Samkol, K. Borin, and S. Sovann, Pig Systems in Southeast Asia ? The Case of Cambodia. International Livestock Research Institute Available at: http://ilri, 2012.

S. Chetra and D. Bourn, Review of animal production in Cambodia. The sub-regional environmental animal health management initiative for enhanced smallholder production in South East Asia, pp.1-30, 2009.

K. Dietze, J. Pinto, S. Wainwright, C. Hamilton, and S. Khomenko, Porcine reproductive and respiratory syndrome (PRRS) virulence jumps and circulation in Southeast Asia. Focus on Porcine reproductive and respiratory syndrome (persistent PRRS), pp.1-8, 2011.

P. Palese, Influenza: old and new threats, Nature Medicine, vol.18, issue.12s, pp.82-87, 2004.
DOI : 10.1016/S1286-4579(00)01351-4

K. Trevennec, B. Cowling, and M. Peyre, Swine influenza surveillance in East and Southeast Asia: a systematic review, Animal Health Research Reviews, vol.16, issue.02, pp.213-223, 2011.
DOI : 10.1128/JVI.75.20.9679-9686.2001
URL : https://hal.archives-ouvertes.fr/pasteur-00646942

K. Reeth and A. Nicoll, A human case of swine influenza virus infection in Europe-implications for human health and research, Euro Surveill, vol.14, 2009.

. Offlu, Technical meeting ? coordinating worldwide surveillance for influenza in pigs Available at http://www.offlu.net/fileadmin, OIE, FAO, issue.6, 2011.

G. Ramsay, L. Andrews, and D. Hoffmann, Poverty Alleviation and Food Security in Asia: The Role of Livestock Bangkok, Thailand. FAO. RAP Publication, pp.1-2, 1999.

C. Kyriakis, C. Olsen, and S. Carman, Serologic Cross-Reactivity with Pandemic (H1N1) 2009 Virus in Pigs, Europe, Emerging Infectious Diseases, vol.16, issue.1, pp.96-99, 2010.
DOI : 10.3201/eid1601.091190

T. Chambers, V. Hinshaw, Y. Kawaoka, B. Easterday, and R. Webster, Influenza viral infection of swine in the United States 1988?1989, Archives of Virology, vol.96, issue.1-4, pp.261-265, 1988.
DOI : 10.1007/BF01319247

C. Olsen, S. Carey, L. Hinshaw, and A. Karasin, Virologic and serologic surveillance for human, swine and avian influenza virus infections among pigs in the north-central United States, Archives of Virology, vol.145, issue.7, pp.1399-1419, 2000.
DOI : 10.1007/s007050070098

K. Jung, D. Song, B. Kang, J. Oh, and B. Park, Serologic surveillance of swine H1 and H3 and avian H5 and H9 influenza A virus infections in swine population in Korea, Preventive Veterinary Medicine, vol.79, issue.2-4, pp.294-303, 2007.
DOI : 10.1016/j.prevetmed.2006.12.005

L. Reed and H. Muench, A simple method of estimating fifty percent endpoints, Am J Hyg, vol.27, pp.493-497, 1938.

T. Ross, Accurate confidence intervals for binomial proportion and Poisson rate estimation, Computers in Biology and Medicine, vol.33, issue.6, pp.509-531, 2003.
DOI : 10.1016/S0010-4825(03)00019-2

A. Lipatov, Y. Kwon, and L. Sarmento, Domestic Pigs Have Low Susceptibility to H5N1 Highly Pathogenic Avian Influenza Viruses, PLoS Pathogens, vol.4, issue.7, p.1000102, 2008.
DOI : 10.1371/journal.ppat.1000102.t003

K. Van-reeth, Avian and swine influenza viruses: our current understanding of the zoonotic risk, Veterinary Research, vol.38, issue.2, pp.243-260, 2007.
DOI : 10.1051/vetres:2006062
URL : https://hal.archives-ouvertes.fr/hal-00902853

W. Liu, M. Wei, and Y. Trong, Seroprevalence and genetic characteristics of five subtypes of influenza A viruses in the Chinese pig population: A pooled data analysis, The Veterinary Journal, vol.187, issue.2, pp.200-206, 2011.
DOI : 10.1016/j.tvjl.2009.10.026

S. Forgie, J. Keenliside, and C. Wilkinson, Swine Outbreak of Pandemic Influenza A Virus on a Canadian Research Farm Supports Human-to-Swine Transmission, Clinical Infectious Diseases, vol.52, issue.1, pp.10-18, 2011.
DOI : 10.1093/cid/ciq030

D. Sreta, S. Tantawet, N. Ayudhya, and S. , Pandemic (H1N1) 2009 Virus on Commercial Swine Farm, Thailand, Emerging Infectious Diseases, vol.16, issue.10, pp.1587-1590, 2010.
DOI : 10.3201/eid1610.100665

K. Yoon, B. Janke, A. Morilla, and J. Zimmerman, Swine Influenza: Etiology , Epidemiology, and Diagnosis. Trends in Emerging Viral Infections of Swine, pp.23-28, 2008.
DOI : 10.1002/9780470376812.ch2a

C. Myers, M. Kasper, and C. Yasuda, Dual Infection of Novel Influenza Viruses A/H1N1 and A/H3N2 in a Cluster of Cambodian Patients, American Journal of Tropical Medicine and Hygiene, vol.85, issue.5, pp.961-963, 2011.
DOI : 10.4269/ajtmh.2011.11-0098

C. Nidom, R. Takano, and S. Yamada, Influenza A (H5N1) Viruses from Pigs, Indonesia, Emerging Infectious Diseases, vol.16, issue.10, pp.1515-1523, 2010.
DOI : 10.3201/eid1610.100508

R. Takano, C. Nidom, and M. Kiso, A comparison of the pathogenicity of avian and swine H5N1 influenza viruses in Indonesia, Archives of Virology, vol.204, issue.4, pp.677-681, 2009.
DOI : 10.1007/s00705-009-0353-5

Q. Zhu, H. Yang, and W. Chen, A Naturally Occurring Deletion in Its NS Gene Contributes to the Attenuation of an H5N1 Swine Influenza Virus in Chickens, Journal of Virology, vol.82, issue.1, pp.220-228, 2008.
DOI : 10.1128/JVI.00978-07

S. Mardy, S. Ly, and S. Heng, Influenza activity in Cambodia during 2006-2008, BMC Infectious Diseases, vol.358, issue.3, p.168, 2006.
DOI : 10.1056/NEJMra0707279

B. Easterday and K. Van-reeth, Swine influenza, Diseases of Swine

V. Duong, S. Sorn, D. Holl, R. M. Deubel, V. Buchy et al., Evidence of Japanese encephalitis virus infections in swine populations in 8 provinces of Cambodia: Implications for national Japanese encephalitis vaccination policy, Acta Tropica, vol.120, issue.1-2, pp.146-150, 2011.
DOI : 10.1016/j.actatropica.2011.07.008
URL : https://hal.archives-ouvertes.fr/pasteur-00808149

K. Reeth, I. Brown, S. Essen, and M. Pensaert, Genetic relationships, serological cross-reaction and cross-protection between H1N2 and other influenza A virus subtypes endemic in European pigs, Virus Research, vol.103, issue.1-2, pp.115-124, 2004.
DOI : 10.1016/j.virusres.2004.02.023

K. Van-reeth, G. Labarque, and M. Pensaert, Serological Profiles after Consecutive Experimental Infections of Pigs with European H1N1, H3N2, and H1N2 Swine Influenza Viruses, Viral Immunology, vol.19, issue.3, pp.373-382, 2006.
DOI : 10.1089/vim.2006.19.373