Lpai h5n8 outbreak response
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LPAI H5N8 Outbreak Response. Caldwell Idaho August-October, 2008. Background: Premises Information. Northwest Gamebirds 25 acres located ~17 miles East of the Oregon-Idaho border ~30,000 game birds Pheasants Chukar Mallard ducks Quail Pigeons 15-20 free-roaming chickens.

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LPAI H5N8 Outbreak Response

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Lpai h5n8 outbreak response

LPAI H5N8 Outbreak Response

Caldwell Idaho

August-October, 2008


Background premises information

Background:Premises Information

  • Northwest Gamebirds

  • 25 acres located ~17 miles East of the Oregon-Idaho border

  • ~30,000 game birds

    • Pheasants

    • Chukar

    • Mallard ducks

    • Quail

    • Pigeons

  • 15-20 free-roaming chickens


Background premises information1

Background:Premises Information

  • 5 barns / 6 large flight pens

    • partitioned into smaller pens

  • Pigeons and quail are housed in smaller coops separate from the game bird population


Lpai h5n8 outbreak response

Ducks

Pheasants

N

Ducks

Ducks

Incubator, Hatchery

Pheasants

Pheasants

Pheasants

Pigeons

Pigeons, Quail, Chukars, juv. Pheasants


Background

Background

  • Birds are sold for hunting dog field trials, dog training, or to hunting preserves

    • Birds at dog trials are dead by end of event.

  • NPIP participant

  • July 19-2008:

  • Last tested negative for AI by PCR

    • 10 Mallards

    • 10 Pheasants

    • 10 Chukar


Background history of current outbreak

Background:History of Current Outbreak

  • Reoccurring problems with MG and pasturellosis in his flock

  • August 2008: pheasants with low grade respiratory illness

    • not associated with major mortality

  • Submitted 3 birds to Penn State University Animal Diagnostic Laboratory


Background history of current outbreak1

Background:History of Current Outbreak

  • Cultured Pasturella and Mycoplasma

  • Routine AI test positive by PCR

  • August 29, 2008:

    • NVSL confirmed H5 positive and N1 negative

    • Premises quarantined by ISDA

    • Enhanced flock testing

      • 20 groups of birds

      • 14 groups of ducks or pheasants showed evidence of H5N8 and other types of AI infection.


Background history of current outbreak2

Background:History of Current Outbreak

  • September 2, 2008:

    • NVSL confirmed Low Path H5N8

    • Sequencing results showed similarities with:

      • 98.5% A/mallard/BC/373/2005 H5N2

      • 98.3% A/tundra swan/AK/44049-168/2006 H5N2

  • September 3, 2008: officially reported

  • September 4, 2008: reported to OIE


Responding agencies

Responding Agencies

  • Idaho State Department of Agriculture (6)

  • USDA / APHIS (5)

  • Idaho State Fish and Wildlife (1)

  • CDC / Idaho State Department of Health (1)

  • WSDA (4)

  • OSDA (1)


Activities timeline

Activities:Timeline

  • September 2-21:

    • Indemnity negotiations

    • Submit cooperative agreement to USDA

    • Research and planning

  • September 2-23: Epi Investigation

  • September 21-22: Staging

  • September 22-27: Depopulation and Disposal

  • September 29-Present: C&D


Epi activities

Epi Activities

  • Trace-in / Trace-out

    • Washington State received 2 shipments on Aug. 8

    • Son-in-law’s gamebirds

  • Enhanced Surveillance

    • Surveillance zone: 3 Km radius

    • ~20 premises had small flocks

    • 2 rounds of testing 10-14 days apart

      • First AI testing: blood (antibody) and swabs (virus)

      • Second AI testing: swabs


Staging

Staging

  • Established working zones

  • Set up decontamination stations

  • Cleaned work areas

  • Prepared premises for foaming activities


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