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Avian Influenza :

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Difficult to control in countries if unable to rapidly detect and control the virus ... threat of transboundary spread (reintroducing threat) from enzootic country ... – PowerPoint PPT presentation

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Title: Avian Influenza :


1
USAID Partners Meeting
Avian Influenza OIE and FAO Common Analysis
Lessons Learned
Dr Nicolas Denormandie World Organisation for
Animal Health, OIE Dr Frédéric Poudevigne Food
and Agriculture Organisation, FAO
2
(No Transcript)
3
HPAI endemic Countries
4
Research of H5N1 on Wild birds (FAO-CIRAD Survey)
  • 2006 n gt5 000
  • viral Detection
  • no H5N1 detected
  • no HPAI (clinic)
  • LPAI detection 3,3
  • Campagne 2007 n gt5 000
  • viral Detection(n8000)
  • So far no H5N1 detected
  • no other HPAI strain, so far
  • LPAI detection 0,4

Sites de prélèvements en 2006
5
The Current H5N1 Asian strain
  • Spread through 3 continents
  • Role of migratory waterfowl ?
  • Role of commercial exchanges
  • Difficult to control in countries if unable to
    rapidly detect and control the virus
  • The widespread over 3 continents is a first time
  • 60 countries infected since end of 2003
  • Stability of the strain no human to human
    transmission
  • REMINDER H5N1 can be low pathogenic (8 genes
    are involved)

6
Important Lessons learned
Global
  • Poultry sector a revolution
  • Added Value from Regional approach and
    cooperation between countries
  • Learn from others experience
  • Harmonize methodologies, strategies
  • Share information
  • Coordination among partners real progress

7
Important Lessons learned
From prevention and surveillance
  • Early detection and rapid response has prevented
    establishment of disease in the majority of the
    infected countries .
  • Reliable data on poultry sector and value chain
    (for cost effective measures)
  • Delayed detection and response has led to endemic
    or uncontrolled situation (Indonesia, Nigeria,
    Egypt)
  • Laboratory efficiency is crucial.
  • The role of public and private veterinary
    networks is important as well as all actors (CDS)
  • Authoritarian policies to change poultry
    production systems are often inefficient and can
    be risky

8
Important Lessons learned (Cont)
From Outbreak control
  • Strong governance and efficient national chain of
    command are essential
  • Importance of security forces to secure
    restricted areas
  • Culling is an expensive control measure but so
    far most effective
  • Compensation is crucial to encourage transparency
    and biosecurity measures ()
  • Technical support assistance
  • Integrated control programs are more successful
    (communication, socio economic, animal and public
    health)
  • Each country should develop the strategy based on
    their own situation
  • Vaccination can limit spread but used alone and
    without permanent monitoring it does not
    eliminate H5N1
  • Importance of continued donor support

9
Important Lessons learned (Cont)
From Pandemic preparedness activities
  • The competition in resources between animal
    disease control and pandemic preparedness
    complicates the implementation of efficient
    control strategies
  • All governments followed WHO recommendations even
    if not relevant to their national situation.
  • No proven human transmission from the
    consumption of poultry products
  • Importance of good quality and more specific
    communication

10
Important Lessons learned (Cont)
From Regional survey
  • Trade (legal or illegal) plays a major part in
    spreading the disease
  • Increasing awareness in cross border issues
  • Continuing threat of transboundary spread
    (reintroducing threat) from enzootic country
  • HPAI infections may have become established in
    wild water bird populations (re-infections)

11
Positive Trends
  • Mortality of wild birds is currently strongly
    decreasing
  • Countries are able to detect and resolve
    outbreaks quicker
  • Less outbreaks in domestic poultry in most newly
    infected countries
  • Species other than wild birds and poultry have
    not yet been involved in the transboundary spread
    of the virus
  • Availability of international funds

12
Positive Trends
  • Capacity building in veterinary services
  • Improvement of laboratory infrastructures and
    capacity
  • Better sharing of strains and data
  • No human cases without animal outbreaks present

13
Pandemic Potential
  • No human cases without animal outbreaks present
  • All countries worldwide should be able to detect
    early and control the virus quickly at its animal
    source
  • Improvements and investments in Veterinary
    Services to address this concern are also
    relevant for responding to future emerging and
    re-emerging diseases linked with globalization
    and climatic changes

14
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