Avian Flu H5N1

1
Avian Flu H5N1

• ERIC ??? 90121347
• JANE ??? 90122214

2
What is the Avian Flu?

• A contagious disease. (only between birds)
• Lately, a subtype crossed 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 to person.
  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
Date of onset Cambodia Cambodia China China Indonesia Indonesia Thailand Thailand Viet Nam Viet Nam Total Total
Date of onset cases deaths cases deaths cases deaths cases deaths cases deaths cases deaths
2003 0 0 0 0 0 0 0 0 3 3 3 3
2004 0 0 0 0 0 0 17 12 29 20 46 32
2005 4 4 5 2 13 8 5 2 61 19 88 35
Total 4 4 5 2 13 8 22 14 93 42 137 70
9
References

• ???????????http//www.who.int/csr/disease/avian_in
  fluenza/en/

10
Transmission
Animal to 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
(No Transcript)
17
Remember the correct steps in washing your hands?
?
?
?
?
?
Soap Your hand
Wet your hand
Wash really well
Rinse your hand
Use paper towel
18
Sources of information

• Internet website

• www.cdc.gov
• www.who.int
• www.epic.gov.sg
• www.info.gov.hk

19
Bird flu hotline

• 1922
• 0800-024-582
• 177

20
Take Care !