Avian Influenza in Bangladesh: Control Strategy - PowerPoint PPT Presentation


Title: Avian Influenza in Bangladesh: Control Strategy


1
Avian Influenza in Bangladesh Control Strategy
  • Dr. Muhammed Salehuddin Khan
  • Director (Animal Health and Administration)
  • Department of Livestock Services
  • Bangladesh

2
Bangladesh at a glimpse
  • Bangladesh is a country located in South Asia
  • It is bordered by India on all sides except for a
    small border with Myanmar to the far southeast
    and by the Bay of Bengal to the south
  • Area 147,570147,570 km²
  • Population 150,448,340
  • Population Density 1045/ km²

3
Poultry Production System in Bangladesh
  • Poultry Population-
  • Chicken 210 million
  • Ducks - 38 million
  • 50 of Poultry are reared in the backyard and 50
    are in commercial sector
  • Over 80 of rural households rear backyard
    chicken
  • Ducks are found in almost every part of the
    country but are more concentrated in areas with
    large water bodies

Continue------
4
-------Continued
Poultry Production System in Bangladesh
  • In the last two decades the commercial sector has
    grown very fast
  • Commercial sector comprises of
  • Grand Parent stock, Parent stock breeder
    operations
  • Large and medium scale layer and broiler
    operations
  • Small scale layer and broiler operations
  • Cockerel farms
  • Intensive Semi intensive farm with improved
    variety

5
Field Veterinary Services
  • Extended to 480 Sub-districts (Upazila) across
    the country
  • An Upazila Livestock Office is staffed with
  • 2 professional staff
  • 6 Para professional staff
  • 3 other support staff
  • Vaccination against common poultry diseases is
    carried out usually by 4 designated Para
    Professional staff and trained poultry
    vaccinators.
  • District Livestock Officer is in charge of
    average -6 Upazilas.
  • Director (Animal Health and Administration) is
    designated as Chief Veterinary Officer of the
    country and responsible for overseeing the animal
    health activities.

6
HPAI situation in Bangladesh
  • HPAI was declared by the Government in 22nd
    March, 2007
  • The disease moved to the South western part
    quickly within few
  • days and first incidence from backyard flock
    (native chicken) was
  • detected in April, 2007.
  • Within a month disease moved to Northern part of
    the country.
  • The first wave continued till July 2007 with
    steady regression of
  • number of cases.
  • Total Number of outbreaks were 55 during the
    first wave.

7
HPAI situation in Bangladesh
  • No disease was reported in August 2007
  • Second wave of outbreak started in September 2007
  • The number of outbreaks was climbing steadily and
    it reached its peak in February 2007 with 96
    outbreaks
  • Number of outbreaks during the second wave till
    18 March is 187
  • Outbreaks were reported in both backyard poultry
    and commercial chickens
  • No outbreak is reported in ducks till to date

8
Epidemiology Curve of HPAI in Bangladesh
March 18 2007
9
Reason for not Undertaking Vaccination
  • Backyard poultry constitutes about 50 of the
    total poultry population
  • Most of the house hold ( about 80) rear chickens
    or duck
  • A large duck population across the country
  • Many small scale commercial farms across the
    country
  • Commercial farms are in close proximity to
    backyard chickens
  • Disease is sporadically found in Backyard
    chickens
  • Managing vaccination under this situation is a
    difficult
  • undertaking

10
Reason for not Undertaking Vaccination
-------Continued
  • The vaccination programme covering backyard
    poultry will be a difficult undertaking
  • Vaccination keeping the backyard poultry outside
    will put the total programme at risk
  • This is an expensive vaccine and needs lots of
    funding
  • Intensive training and communication will be
    needed
  • Post vaccination monitoring and identify
    vaccinated backyard birds are difficult due to
    poor laboratory facilities
  • Poor understanding about the type and character
    of circulating virus
  • Difficult to produce vaccine locally and
    dependence on importation
  • The results of vaccination in many countries are
    not encouraging in particular countries with
    similar husbandry practices in poultry rearing

11
Alternative Government Policy for HPAI control
  • Depopulation of all birds in 1 Km radius of
    infected premise
  • Destruction or decontamination of all
    contaminated materials of the infected premise
  • Complete disinfection of infected and
    contaminated premise, transport and vehicle
  • Movement control of poultry and poultry product
    in the control zone
  • Strong communication and awareness building

12
Thank You
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Avian Influenza in Bangladesh: Control Strategy

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Title: Avian Influenza in Bangladesh: Control Strategy


1
Avian Influenza in Bangladesh Control Strategy
  • Dr. Muhammed Salehuddin Khan
  • Director (Animal Health and Administration)
  • Department of Livestock Services
  • Bangladesh

2
Bangladesh at a glimpse
  • Bangladesh is a country located in South Asia
  • It is bordered by India on all sides except for a
    small border with Myanmar to the far southeast
    and by the Bay of Bengal to the south
  • Area 147,570147,570 km²
  • Population 150,448,340
  • Population Density 1045/ km²

3
Poultry Production System in Bangladesh
  • Poultry Population-
  • Chicken 210 million
  • Ducks - 38 million
  • 50 of Poultry are reared in the backyard and 50
    are in commercial sector
  • Over 80 of rural households rear backyard
    chicken
  • Ducks are found in almost every part of the
    country but are more concentrated in areas with
    large water bodies

Continue------
4
-------Continued
Poultry Production System in Bangladesh
  • In the last two decades the commercial sector has
    grown very fast
  • Commercial sector comprises of
  • Grand Parent stock, Parent stock breeder
    operations
  • Large and medium scale layer and broiler
    operations
  • Small scale layer and broiler operations
  • Cockerel farms
  • Intensive Semi intensive farm with improved
    variety

5
Field Veterinary Services
  • Extended to 480 Sub-districts (Upazila) across
    the country
  • An Upazila Livestock Office is staffed with
  • 2 professional staff
  • 6 Para professional staff
  • 3 other support staff
  • Vaccination against common poultry diseases is
    carried out usually by 4 designated Para
    Professional staff and trained poultry
    vaccinators.
  • District Livestock Officer is in charge of
    average -6 Upazilas.
  • Director (Animal Health and Administration) is
    designated as Chief Veterinary Officer of the
    country and responsible for overseeing the animal
    health activities.

6
HPAI situation in Bangladesh
  • HPAI was declared by the Government in 22nd
    March, 2007
  • The disease moved to the South western part
    quickly within few
  • days and first incidence from backyard flock
    (native chicken) was
  • detected in April, 2007.
  • Within a month disease moved to Northern part of
    the country.
  • The first wave continued till July 2007 with
    steady regression of
  • number of cases.
  • Total Number of outbreaks were 55 during the
    first wave.

7
HPAI situation in Bangladesh
  • No disease was reported in August 2007
  • Second wave of outbreak started in September 2007
  • The number of outbreaks was climbing steadily and
    it reached its peak in February 2007 with 96
    outbreaks
  • Number of outbreaks during the second wave till
    18 March is 187
  • Outbreaks were reported in both backyard poultry
    and commercial chickens
  • No outbreak is reported in ducks till to date

8
Epidemiology Curve of HPAI in Bangladesh
March 18 2007
9
Reason for not Undertaking Vaccination
  • Backyard poultry constitutes about 50 of the
    total poultry population
  • Most of the house hold ( about 80) rear chickens
    or duck
  • A large duck population across the country
  • Many small scale commercial farms across the
    country
  • Commercial farms are in close proximity to
    backyard chickens
  • Disease is sporadically found in Backyard
    chickens
  • Managing vaccination under this situation is a
    difficult
  • undertaking

10
Reason for not Undertaking Vaccination
-------Continued
  • The vaccination programme covering backyard
    poultry will be a difficult undertaking
  • Vaccination keeping the backyard poultry outside
    will put the total programme at risk
  • This is an expensive vaccine and needs lots of
    funding
  • Intensive training and communication will be
    needed
  • Post vaccination monitoring and identify
    vaccinated backyard birds are difficult due to
    poor laboratory facilities
  • Poor understanding about the type and character
    of circulating virus
  • Difficult to produce vaccine locally and
    dependence on importation
  • The results of vaccination in many countries are
    not encouraging in particular countries with
    similar husbandry practices in poultry rearing

11
Alternative Government Policy for HPAI control
  • Depopulation of all birds in 1 Km radius of
    infected premise
  • Destruction or decontamination of all
    contaminated materials of the infected premise
  • Complete disinfection of infected and
    contaminated premise, transport and vehicle
  • Movement control of poultry and poultry product
    in the control zone
  • Strong communication and awareness building

12
Thank You
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