Low pathogenic avian influenza (poultry), United States of America (WAHID Interface - OIE World Animal Health Information Database, March 30 2011, edited)

[Giuseppe]

Low pathogenic avian influenza (poultry), United States of America (WAHID Interface - OIE World Animal Health Information Database, March 30 2011, edited)


[Source: OIE, full page: <cite cite="http://web.oie.int/wahis/public.php?page=single_report&pop=1&reportid=10435 ">WAHID Interface - OIE World Animal Health Information Database</cite>. Extract, edited.]

Low pathogenic avian influenza (poultry), United States of America

Information received on 30/03/2011 from Dr John Clifford, Deputy Administrator, Animal and Plant Health Inspection Service, United States Department of Agriculture, Washington, United States of America

• Summary
  • Report type Immediate notification
  • Start date 25/03/2011
  • Date of first confirmation of the event 25/03/2011
  • Report date 29/03/2011
  • Date submitted to OIE 30/03/2011
  • Reason for notification Reoccurrence of a listed disease
  • Date of previous occurrence 15/12/2009
  • Manifestation of disease Sub-clinical infection
  • Causal agent Low pathogenic avian influenza virus
  • Serotype H7N3
  • Nature of diagnosis Laboratory (advanced)
  • This event pertains to a defined zone within the country

• New outbreaks
  • Outbreak 1 - Polk County, Missouri, Polk County, MISSOURI
    • Date of start of the outbreak 25/03/2011
    • Outbreak status Continuing (or date resolved not provided)
    • Epidemiological unit Farm
    • Affected animals: Species - Susceptible - Cases - Deaths - Destroyed - Slaughtered
      • Birds - 30000 - ... - ... - ... - ...
      • Affected Population
        • The index premises is a commercial turkey operation in Missouri consisting of 14,000 affected 19-week-old turkeys in two separate houses.
        • Also exposed on the premises are 16,000 5-week-old turkeys.

• Summary of outbreaks
  • Total outbreaks: 1
  • Outbreak statistics: Species - Apparent morbidity rate - Apparent mortality rate - Apparent case fatality rate - Proportion susceptible animals lost*
    • Birds - ** - ** - ** - **
    • * Removed from the susceptible population through death, destruction and/or slaughter
    • ** Not calculated because of missing information

• Epidemiology
  • Source of the outbreak(s) or origin of infection
    • Unknown or inconclusive

• Epidemiological comments
  • Samples were collected as part of routine, pre-slaughter surveillance for the National Poultry Improvement Plan (NPIP) Avian Influenza Clean Program (H5 and H7).
  • The turkeys did not show any clinical signs of sickness or disease.
  • The Missouri H5/H7 LPAI Initial State Response and Containment plan has been implemented.
  • Note by the OIE Animal Health Information Department: H5 and H7 avian influenza in its low pathogenic form in poultry is a notifiable disease as per Chapter 10.4. on avian influenza of the Terrestrial Animal Health Code (2010).

• Control measures
  • Measures applied
    • Quarantine
    • Movement control inside the country
    • Vaccination prohibited
    • No treatment of affected animals
  • Measures to be applied
    • No other measures

• Diagnostic test results
  • Laboratory name and type Missouri Department of Agriculture (Local laboratory)
    • Tests and results: Species - Test - Test date - Result
      • Birds - agar-gel immunodiffusion (AGID) - 25/03/2011 - Positive
  • Laboratory name and type National Veterinary Services Laboratories (National laboratory)
    • Tests and results: Species - Test - Test date - Result
      • Birds - agar-gel immunodiffusion (AGID) - 28/03/2011 - Positive
      • Birds - neuraminidase inhibition assay - 28/03/2011 - Positive
      • Birds - real-time PCR - 28/03/2011 - Positive
      • Birds - real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) - 28/03/2011 - Positive
      • Birds - virus isolation - Pending

• Future Reporting
  • The event is continuing. Weekly follow-up reports will be submitted.

(...)
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[Ronan Kelly]

Re: Low pathogenic avian influenza (poultry), United States of America (WAHID Interface - OIE World Animal Health Information Database, March 30 2011, edited)

March 30, 2011

Department of Agriculture Investigating Poultry Disease in Southwestern Missouri
The Missouri Department of Agriculture is currently investigating a case of low pathogenic Avian Influenza at a poultry facility in Polk County. As a precaution, the poultry facility has been quarantined following preliminary results obtained during routine testing.

Avian Influenza is a viral disease affecting birds. It is extremely rare for humans to be affected by this type of Avian Influenza. Additional tests are currently in progress to authenticate the disease by the National Veterinary Services Laboratory in Ames, Iowa. The birds affected remain under quarantine and flocks within six miles of the facility are receiving tests for the disease.

The Missouri Department of Agriculture and the Missouri Department of Health and Senior Services are working closely with the USDA to monitor the situation. Missouri's State Veterinarian and Public Health Veterinarian are working with the USDA Area Veterinarian in Charge to oversee the care of birds.

For more information on the Missouri Department of Agriculture and its programs, visit mda.mo.gov.

http://mda.mo.gov/news/2011/Department_of_Agriculture_Investigating_Poultry_Disease_in_Southwestern_Missouri