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Avian Flu H5N1

Learn about Avian Flu, a contagious disease mainly affecting birds that can cross to humans, its causes, risks, prevention, and history. Stay informed and protect yourself!

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Avian Flu H5N1

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  1. Avian Flu H5N1 ERIC 吳玟晏 90121347 JANE 呂嘉心 90122214

  2. What is the Avian Flu? • A contagious disease. (only between birds) • Lately, a subtypecrossed the species barrier to infect human. • Domestic poultry: • High pathogenic (fatal, internal organs severely injured, within 48 hours) • Low pathogenic (mild symptoms like ruffled feathers, a drop in egg production)

  3. Which viruses cause highly pathogenic disease? • Influenza A viruses have 16 H subtypes and 9 N subtypes. (H and N) • H5 and H7 subtypes are known to cause the highly pathogenic form of the disease. • When they can circulate in poultry populations, they can mutate, and grow unto a pathogenic form.

  4. Sources of the Avian Flu • Avian Flu is infectious disease of birds caused by type A strains of the influenza virus. The disease, which was first identified in Italy more than 100 years ago, occur worldwide. • 1918 outbreaks in Italy, a Pandemic, the virus was H1N1.

  5. Risks • First, if the virus can break the barrier between birds and human beings, it will cause very severe disease. • Second, if given enough opportunities, it will change into a form that is highly infectious for humans and spreads easily from person toperson. Then it will start a global outbreak (a pandemic.)

  6. A Timeline of A.F. • 1996 = Highly pathogenic H5N1 virus is isolated from a farmed goose in Guangdong. • 1997 = Human infections with H5N1 reported in Hong Kong. • 2003 ~ = An outbreak in Asia in mid-2003 (some cases are unreported)

  7. A History Chart of A.F.

  8. Cumulative Number of Confirmed Human Cases of Avian Influenza A/(H5N1) Reported to WHO Total number of cases includes number of deaths.WHO reports only laboratory-confirmed cases. 9 December 2005

  9. References • 世界衛生組織禽流感專頁http://www.who.int/csr/disease/avian_influenza/en/

  10. Transmission Animalto human Human to human Environment to human

  11. Animal to human • Touching diseased birds • Handling fighting cocks • Playing with poultry • Eating undercooked poultry

  12. Environment to human • Droppings from poultry, migratory birds, etc. • Our situation

  13. Human to human • Rarely reported • Possibility in global influenza pandemic

  14. Whether bird flu comes to Taiwan or not • To come or not? Or When it comes? • Migratory birds • Outbreak of bird flu • What we can do? --Avoid migratory --Keep hands clean

  15. A Correct Way to Wash Your Hands

  16. Remember the correct steps in washing your hands?      Soap Your hand Wet your hand Wash really well Rinse your hand Use paper towel

  17. Sources of information • Internet website www.cdc.gov www.who.int www.epic.gov.sg www.info.gov.hk

  18. Bird flu hotline • 1922 • 0800-024-582 • 177

  19. Take Care !

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