Abstract
Avian flu, mainly natural to wild waterfowl, became famous in 2006 with the growing threat of a pandemic driven by the highly pathogenic strain H5N1. Even though the feared pandemic has not yet occurred, a succession of events and neglects contribute to an ongoing stage of risk. Avian influenza viruses are one of many pathogens which under appropriate conditions can affect the health of wildlife, humans, and domestic animals, as well as conservation, agriculture, food security, and the overall health of ecosystems. Avian influenza is a global disease, which overcame species and geographical barriers, favoured by the lack of action. We would hope that avian influenza has taught us that an ounce of prevention is worth a ton of cure.
References
WEBSTER RG, BEAN WJ, GORMAN OT, CHAMBERS TM YKAWAOKA Y (1992) Evolution and ecology of influ-enza A viruses. Microbiology Reviews 56:152–1792
CLARK L Y HALL J (2006) Avian influenza in wild birds:status as reservoirs, and risks to humans and agri-culture. Ornithological Monographs 60:3–293
OLSEN B, MUNSTER VJ, WALLENSTEN A, WALDENSTROMJ, OSTERHAUS AD Y FOUCHIER RA (2006) Global pat-terns of influenza A virus in wild birds. Science312:384–3884
WEBSTER RG, KRAUSS S, HULSE-POST D Y STURM-RAMÍREZ K (2007) Evolution of influenza viruses in wildbirds. Journal of Wildlife Diseases 43(Suppl.):S1–S65
BROWN JD, SWAYNE DE, COOPER RJ, BURNS RE YSTALLKNECHT DE (2007) Persistence of H5 and H7avian influenza viruses in water. Avian Diseases51:285–2896
FOUCHIER RAM, MUNSTER VJ, KEAWCHAROEN J,OSTERHAUS ADME y KUIKEN T (2007) Virology ofavian influenza in relation to wild birds. Journal ofWildlife Diseases 43(Suppl): S7–14S7
BELDOMENICO PM Y UHART MM (2008) The ecoepi-demiology of avian influenza viruses. FAV E 7:23–408
SWAYNE DE Y PANTIN-JACKWOOD M (2006) Pathoge-nicity of avian influenza viruses in poultry.Developments in Biologicals 124:61–679
LIU J, XIAO H, LEI F, ZHU Q, QIN K, ZHANG XW, ZHANGXL, ZHAO D, WANG G, FENG Y, MA J, LIU W, WANG J YGAO GF (2005) Highly pathogenic H5N1 influenzavirus infection in migratory birds. Science 309:120610
WEBSTER RG, PEIRIS M, CHEN H Y GUAN Y (2006)H5N1 outbreaks and enzootic influenza. EmergingInfectious Diseases 12:3–811
BECKER WB (1966) The isolation and classificationof tern virus: influenza A-Tern South Africa—1961.Journal of Hygiene 64:309–32012
TAUBENBERGER JK Y MORENS DM (2006) 1918 Influ-enza: the mother of all pandemics. Emerging Infec-tious Diseases 12:15–2213
CHAN PK (2002) Outbreak of avian influenza A(H5N1) virus infection in Hong Kong in 1997. Clini-cal Infectious Diseases 34(Suppl):S58–S6414
CHEN H, DENG G, LI Z, TIAN G, LI Y, JIAO P, ZHANG L,LIU Z, WEBSTER RG Y YU K (2004) The evolution ofH5N1 influenza viruses in ducks in southern China.Proceedings of the National Academy of Sciences101:10452–1045715
GILBERT M, CHAITAWEESUB P, PARAKAMAWONGSA T,PREMASHTHIRA S, TIENSIN T, KALPRAVIDH W, WAGNERH Y SLINGENBERGH J (2006) Free-grazing ducks andhighly pathogenic avian influenza, Thailand. Emerg-ing Infectious Diseases 12:227–23416
HOI YK, SEO SH, KIM JA, WEBBY RJ Y WEBSTER RG(2005) Avian influenza viruses in Korean live poul-try markets and their pathogenic potential. Virol-ogy 332:529–53717
WANG M, DI B, ZHOU D, ZHENG B, JING H, LIN Y, LIUY, WU X, QIN P, WANG L, JIAN L, LI X, XU J, LU E, LI TY XU J (2006) Food markets with live birds as sourceof avian influenza. Emerging Infectious Diseases12:1773–177518
KARESH WB, COOK RA, GILBERT M Y NEWCOMB J(2007) Implication of wildlife trade on the move-ment of avian influenza and other infectious dis-eases. Journal of Wildlife Diseases 43(Suppl.):S55–S5919
KARESH WB, COOK RA, BENNETT EL Y NEWCOMB J(2005) Wildlife trade and global disease emergence.Emerging Infectious Diseases 11:1000–100220
VAN BORM S, THOMAS I, HANQUET G, LAMBRECHT B,BOSCHMANS M, DUPONT G, DECAESTECKER M,SNACKEN R YVA NDEN BERG T (2005) Highly patho-genic H5N1 influenza virus in smuggled Thaieagles, Belgium. Emerging Infectious Diseases11:702–70521
WHO (2009) Current phase of alert in the WHO globalinfluenza preparedness plan. World Health Organiza-tion, Ginebra (URL: http://www.who.int/csr/disease/avian_influenza/phase/en/index.html)22
MARTIN V, VON DOBSCHUETZ S, LEMENACH A, RASS N,SCHOUSTRA W Y DESIMONE L (2007) Early warning,database, and information systems for avian influ-enza surveillance. Journal of Wildlife Diseases43(Suppl):S71–76S23
GUBERTI V Y NEWMAN SH (2007) Guidelines on wildbird surveillance for highly pathogenic avian influ-enza H5N1 virus.Journal of Wildlife Diseases43(Suppl):S29–34S24
FAO (2007) Protect poultry - Protect people. Basic ad-vice for stopping the spread of avian influenza. Emer-gency Centre for Transboundary Animal Diseases,Food and Agriculture Organization of the UnitedNations, Roma25
FAO, OIE Y WHO (2008) The global strategy for pre-vention and control of H5N1 highly pathogenic avianinfluenza. Food and Agriculture Organization of theUnited Nations, Roma
ALEXANDER DJ (2007) Summary of avian influenzaactivity in Europe, Asia, Africa, and Australasia,2002–2006. Avian Diseases 51:161–16627
FAO (2008) H5N1 HPAI. Global overview – January2009. Food and Agriculture Organization of theUnited Nations, Roma (URL: ftp://ftp.fao.org/docrep/fao/011/ai308e/ai308e00.pdf)28
WHO (2009) Cumulative number of confirmed hu-man cases of avian influenza A (H5N1) reported to
WHO. 30 March 2009. World Health Organization,Ginebra (URL: http://www.who.int/csr/disease/avian_influenza/country/cases_table_2009_03_30/en/index.html)

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.