1.World Health Organization. Evolution of H5N1 avian influenza viruses in Asia. Emerging Infectious Diseases 2005; 11: 1515–1521.
2.Eagles, D, et al. H5N1 highly pathogenic avian influenza in Southeast Asia. Revue Scientifique et Technique 2009; 28: 341–348.
3.Food and Agriculture Organization. Approaches to controlling, preventing and eliminating H5N1 highly pathogenic avian influenza in endemic countries, 2011 (FAO Animal Health and Production, Paper No. 171).
4.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.
5.Alba, A, et al. Assessment of different surveillance systems for avian influenza in commercial poultry in Catalonia (North-Eastern Spain). Preventive Veterinary Medicine 2010; 97: 107–118.
6.Henning, J, et al. Scavenging ducks and transmission of highly pathogenic avian influenza, Java, Indonesia. Emerging Infectious Diseases 2010; 16: 1244–1250.
7.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 2010; 101: 229–240.
8.Nguyen, DC, et al. Isolation and characterization of avian influenza viruses, including highly pathogenic H5N1, from poultry in live bird markets in Hanoi, Vietnam, in 2001. Journal of Virology 2005; 79: 4201–4212.
9.Pantin-Jackwood, MJ, Swayne, DE. Pathobiology of Asian highly pathogenic avian influenza H5N1 virus infections in ducks. Avian Diseases 2007; 51: 250–259.
10.Pantin-Jackwood, MJ, et al. Age at infection affects the pathogenicity of Asian highly pathogenic avian influenza H5N1 viruses in ducks. Virus Research 2007; 130: 151–161.
11.Eggert, D, Swayne, DE. Single vaccination provides limited protection to ducks and geese against H5N1 high pathogenicity avian influenza virus. Avian Diseases 2010; 54: 1224–1229.
12.Dohoo, I, Martyn, W, Stryhn, H. Veterinary Epidemiologic Research, 1st edn.Charlottetown, Canada: AVC Inc., 2003.
13.Londt, BZ et al. Pathogenesis of highly pathogenic avian influenza A/turkey/Turkey/1/2005 H5N1 in Pekin ducks (Anas platyrhynchos) infected experimentally. Avian Pathology 2008; 37: 619–627.
14.Spackman, E, et al. Development of a real-time reverse transcriptase PCR assay for type A influenza virus and the avian H5 and H7 hemagglutinin subtypes. Journal of Clinical Microbiology 2002; 40: 3256–3260.
15.Wu, C, et al. A multiplex real-time RT-PCR for detection and identification of influenza virus types A and B and subtypes H5 and N1. Journal of Virological Methods 2008; 148: 81–88.
16.Cowling, DW, Gardner, IA, Johnson, WO. Comparison of methods for estimation of individual-level prevalence based on pooled samples. Preventive Veterinary Medicine 1999; 39: 211–225.
17.Thrusfield, M. Veterinary Epidemiology, 3rd edn.Ames, Iowa: Blackwell Science, 2005.
18.Sergeant, E.Epitools epidemiological calculators. AusVet Animal Health Services and Australian Biosecurity Cooperative Research Centre for Emerging Infectious Disease. (http://epitools.ausvet.com.au).
19.Alexander, DJ. An overview of the epidemiology of avian influenza. Vaccine 2007; 25: 5637–5644.
20.Soares Magalhaes, RJ, et al. Associations between attributes of live poultry trade and HPAI H5N1 outbreaks: a descriptive and network analysis study in northern Vietnam. BMC Veterinary Research 2010; 6: 10.
21.Cardona, C, Yee, K, Carpenter, T. Are live bird markets reservoirs of avian influenza? Poultry Science 2009; 88: 856–859.
22.Kung, NY, et al. The impact of a monthly rest day on avian influenza virus isolation rates in retail live poultry markets in Hong Kong. Avian Diseases 2003; 47: 1037–1041.
23.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 and Emerging Diseases 2011; 58: 492–502.
24.Dinh, PN, et al. Risk factors for human infection with avian influenza A H5N1, Vietnam, 2004. Emerging Infectious Diseases 2006; 12: 1841–1847.
25.Pfeiffer, DU, et al. An analysis of the spatial and temporal patterns of highly pathogenic avian influenza occurrence in Vietnam using national surveillance data. Veterinary Journal 2007; 174: 302–309.
26.Minh, PQ, et al. A description of the management of itinerant grazing ducks in the Mekong river delta of Vietnam. Preventive Veterinary Medicine 2010; 94: 101–107.
27.Indriani, R, et al. Environmental sampling for avian influenza virus A (H5N1) in live-bird markets, Indonesia. Emerging Infectious Diseases 2010; 16: 1889–1895.
28.Bulaga, LL, et al. Epidemiologic and surveillance studies on avian influenza in live-bird markets in New York and New Jersey, 2001. Avian Diseases 2003; 47: 996–1001.