1.Desvaux, S, Dinh, TV (eds). A General Review and a Description of the Poultry Production in Vietnam. Hanoi, Vietnam. Hanoi: Agricultural Publishing House, 2008.
2.Minh, PQ, et al. Spatio-temporal epidemiology of highly pathogenic avian influenza outbreaks in the two deltas of Vietnam during 2003–2007. Preventive Veterinary Medicine 2009; 89: 16–24.
3.Nguyen, TD, et al. Multiple sublineages of influenza a virus (H5N1), Vietnam, 2005–2007. Emerging Infectious Diseases 2008; 14: 632–636.
4.Wan, XF, et al. Evolution of highly pathogenic H5N1 avian influenza viruses in Vietnam between 2001 and 2007. PLoS One 2008; 3: e3462.
5.WHO/OIE/FAO H5N1 Evolution Working Group.Toward a unified nomenclature system for highly pathogenic avian influenza virus (H5N1). Emerging Infectious Diseases 2008; 14: e1.
6.Smith, GJ, et al. Evolution and adaptation of H5N1 influenza virus in avian and human hosts in Indonesia and Vietnam. Virology 2006; 350: 258–268.
7.Rivailler, P, et al. Recent genomic evolution of highly pathogenic avian influenza (H5N1) viruses in Vietnam suggests continued emergence of H5N1 genotypes and possible reintroduction of novel virus strains. In: Influenza and Other Respiratory Viruses: Options for the Control of Influenza VII. Hong Kong SAR, China, 2010, pp. 530.
9.Qiao, C, et al. Vaccines developed for H5 highly pathogenic avian influenza in China. Annals of the New York Academy of Sciences 2006; 1081: 182–192.
10.Suarez, DL, Schultz-Cherry, S. Immunology of avian influenza virus: a review. Develomental and Comparative Immunology 2000; 24: 269–283.
12.Desvaux, S, et al. Risk factors of highly pathogenic avian influenza H5N1 occurrence at the village and farm levels in the Red River delta region in Vietnam. Transboundary Emerging Disease 2011; 58: 492–502.
13.Killip, S, Mahfoud, Z, Pearce, K. What is an intracluster correlation coefficient? Crucial concepts for primary care researchers. Annals of Family Medicine 2004; 2: 204–208.
14.Veits, J, et al. Protective efficacy of several vaccines against highly pathogenic H5N1 avian influenza virus under experimental conditions. Vaccine 2008; 26: 1688–1696.
16.OIE.Avian influenza. In: Manual of Diagnostic Tests and Vaccines for Terrestrial Animals, 6th edn.Paris: OIE, 2008, pp. 465–481.
17.Desvaux, S, et al. Evaluation of serological tests for H5N1 avian influenza on field samples from domestic poultry populations in Vietnam: consequences for surveillance. Veterinary Microbiology 2012; 156: 277–284.
18.Dohoo, I, Martin, W, Stryhn, H (eds). Veterinary Epidemiologic Research. Charlottetown, Prince Edward Island, Canada: AVC Inc., 2003.
19.Rogers, WH. Regression standard errors in clustered samples. Stata Technical Bulletin 1993, pp. 19–23.
20.Ellis, TM, et al. Use of avian influenza vaccination in Hong Kong. Developmental Biology (Basel) 2006; 124: 133–143.
21.Peyre, M, et al. Avian influenza vaccines: a practical review in relation to their application in the field with a focus on the Asian experience. Epidemiology and Infection 2009; 137: 1–21.
22.Hannoun, C, Megas, F, Piercy, J. Immunogenicity and protective efficacy of influenza vaccination. Virus Research 2004; 103: 133–138.
23.Marche, S, Lambrecht, B, van den Berg, T. Evaluation of different serologic markers for the early detection of avian influenza infection in chickens. Avian Disease 2010; 54: 690–698.
24.Burnham, KP, Anderson, DR. Multimodel inference: understanding AIC and BIC in model selection. Sociological Methods and Research 2004; 33: 261–304.
25.Kim, JK, et al. Pathogenicity and vaccine efficacy of different clades of Asian H5N1 avian influenza A viruses in domestic ducks. Journal of Virology 2008; 82: 11374–11382.
26.Davis, CT, et al. Detection and characterization of clade 7 high pathogenicity avian influenza H5N1 viruses in chickens seized at ports of entry and live poultry markets in Vietnam. Avian Disease 2010; 54 (1 Suppl.): 307–312.
27.Long, NT, et al. Recent avian influenza virus A/H5N1 evolution in vaccinated and unvaccinated poultry from farms in Southern Vietnam, January–March 2010. Transboundary and Emerging Diseases 2011; 58: 537– 543.
28.Tian, G, et al. Protective efficacy in chickens, geese and ducks of an H5N1-inactivated vaccine developed by reverse genetics. Virology 2005; 341: 153–162.
29.Taylor, N, Dung, DH. An analysis of data generated by post-vaccination sero-monitoring and surveillance activities, following HPAI vaccination in Vietnam (2005–2006). Hanoi, Vietnam: Food and Agriculture Organization, Department of Animal Health, 2007. Report No.: Technical report (2) OSRO/RAS/604/USA.
30.Chen, RT, Orenstein, WA. Epidemiologic methods in immunization programs. Epidemiologic Reviews 1996; 18: 99–117.
31.Rudolf, M, et al. Longitudinal 2 years field study of conventional vaccination against highly pathogenic avian influenza H5N1 in layer hens. Vaccine 2010; 28: 6832–6840.
32.Bouma, A, et al. Estimation of transmission parameters of H5N1 avian influenza virus in chickens. PLoS Pathogens 2009; 5: e1000281.
33.Maas, R, et al. Maternal immunity against avian influenza H5N1 in chickens: limited protection and interference with vaccine efficacy. Avian Pathology 2011; 40: 87–92.
34.Hao, YX, et al. Reduced serologic response to avian influenza vaccine in specific-pathogen-free chicks inoculated with Cryptosporidium baileyi. Avian Disease 2008; 52: 690–693.
35.Pfeiffer, J, et al. Efficacy of commercial vaccines in protecting chickens and ducks against H5N1 highly pathogenic avian influenza viruses from Vietnam. Avian Disease 2010; 54: 262–271.
36.Tian, G, et al. Protective efficacy of the H5 inactivated vaccine against different highly pathogenic H5N1 avian influenza viruses isolated in China and Vietnam. Avian Disease 2010; 54: 287–289.
37.Perkins, LE, Swayne, DE. Pathogenicity of a Hong Kong-origin H5N1 highly pathogenic avian influenza virus for emus, geese, ducks, and pigeons. Avian Disease 2002; 46: 53–63.
38.Pantin-Jackwood, MJ, Swayne, DE. Pathobiology of Asian highly pathogenic avian influenza H5N1 virus infections in ducks. Avian Disease 2007; 51: 250–259.
39.Henning, J, et al. Highly pathogenic avian influenza (H5N1) in ducks and in-contact chickens in backyard and smallholder commercial duck farms in Viet Nam. Preventive Veterinary Medicine 2011; 101: 229– 240.
40.Phuong, DQ, Dung, NT, Christensen, JP. H5 Avian influenza in rural poultry of Thai-Binh Province Vietnam. Developmental Biology (Basel) 2006; 124: 234.
41.Swayne, DE, Pantin-Jackwood, M. Pathogenicity of avian influenza viruses in poultry. Developmental Biology (Basel) 2006; 124: 61–67.
42.Walker, PG, et al. A Bayesian approach to quantifying the effects of mass poultry vaccination upon the spatial and temporal dynamics of H5N1 in Northern Vietnam. PLoS Computational Biology 2010; 6: e1000683.
43.Savill, NJ, et al. Silent spread of H5N1 in vaccinated poultry. Nature 2006; 442: 757.