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US, California - Wild duck HP H5N8 positive - Reported by California Waterfowl Association - Confirmed via OIE

Gert van der Hoek

Gert van der Hoek

In Memoriam - Editor, Senior Moderator
California Waterfowl

Avian influenza news from the USDA: This week, as a result of increased surveillance in the Pacific flyway, USDA has confirmed the presence of HPAI in a wild duck in Butte County, California.

The samples in California were collected from a hunter-harvested gadwall in Butte County, California, as part of increased wild bird surveillance. Testing by the California Animal Health and Food Safety Laboratory, a National Animal Health Laboratory Network (NAHLN) laboratory, was positive on H5 PCR, and the sequencing results were consistent with Eurasian H5N8.

The National Veterinary Services Laboratories (NVSL) received the samples on December 31 and confirmed the presence of HPAI H5N8.

This is the same HPAI H5N8 strain that was found in Washington gryfalcons and the Oregon backyard poultry flock. This is not an unexpected finding, given wild waterfowl migratory patterns in the Pacific flyway.



https://www.facebook.com/CaliforniaW...coStateChapter

via: http://www.refugeforums.com/refuge/s...d.php?t=984763
 
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[TD="width: 1%"]
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[TD="width: *, align: left"] Highly pathogenic avian influenza,
United States of America
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[TD="width: 1%, align: right"] [/TD]
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[TD] [TABLE="class: TableChoisir, border: 0, cellpadding: 0, cellspacing: 0"]
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[TD="class: topbigtabletitle27"]Information received on 07/01/2015 from Dr John Clifford, Deputy Administrator, Animal and Plant Health Inspection Service, United States Department of Agriculture, Washington, United States of America[/TD]
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[/TD]
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[TR]
[TD] Summary
[TABLE="class: TableFoyers, width: 915"]
[TR]
[TD="class: filtrer_th, width: 10%"]Report type[/TD]
[TD="width: 30%"]Follow-up report No. 3[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]Date of start of the event[/TD]
[TD="width: 30%"]10/12/2014[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]Date of pre-confirmation of the event[/TD]
[TD="width: 30%"]14/12/2014[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]Report date[/TD]
[TD="width: 30%"]07/01/2015[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]Date submitted to OIE[/TD]
[TD="width: 30%"]07/01/2015[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]Reason for notification[/TD]
[TD="width: 30%"]Reoccurrence of a listed disease[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]Date of previous occurrence[/TD]
[TD="width: 30%"]2004[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]Manifestation of disease[/TD]
[TD="width: 30%"]Clinical disease[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]Causal agent[/TD]
[TD="width: 30%"]Highly pathogenic avian influenza virus[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]Serotype[/TD]
[TD="width: 30%"]H5N8[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]Nature of diagnosis[/TD]
[TD="width: 30%"]Laboratory (advanced)[/TD]
[/TR]
[TR]
[TD="class: filtrer_th, width: 10%"]This event pertains to[/TD]
[TD="width: 30%"]a defined zone within the country[/TD]
[/TR]
[TR]
[TD="class: filtrer_th ta_left, width: 10%"]Related reports[/TD]
[TD="width: 30%"]Immediate notification (16/12/2014)
Follow-up report No. 1 (19/12/2014)
Follow-up report No. 2 (29/12/2014)
Follow-up report No. 3 (07/01/2015) [/TD]
[/TR]
[/TABLE]
[/TD]
[/TR]
[TR]
[TD] [TABLE="class: TableFoyers, width: 915"]
[TR]
[TD="class: filtrer_th ta_left"]Outbreaks[/TD]
[TD]There are no new outbreaks in this report[/TD]
[/TR]
[/TABLE]

[/TD]
[/TR]
[TR]
[TD] Epidemiology
[TABLE="class: TableFoyers, width: 915"]
[TR]
[TD="class: filtrer_th ta_left"]Source of the outbreak(s) or origin of infection[/TD]
[TD]
  • Contact with wild species
[/TD]
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[TR]
[TD="class: filtrer_th ta_left"]Epidemiological comments[/TD]
[TD]The USDA Animal and Plant Health Inspection Service (APHIS), in conjunction with State Departments of Agriculture and Wildlife, are continuing to conduct a comprehensive epidemiological investigation and enhanced surveillance in response to the HPAI H5N8 wild bird related event. As part of the increased AI surveillance of wild birds (performed by testing hunter harvested birds), an H5N8 with an amino acid sequence at the HA cleavage site that is consistent with highly pathogenic avian influenza has been identified in a wild gadwall duck in the Pacific flyway. HA and NA sequence fragments are essentially identical to that found in the reported gyrfalcon. Update on the Oregon backyard premises as of 2 January 2015: ? A 10 km active surveillance zone has been initiated for avian influenza. - All backyard premises with birds in the 10 km surveillance zone will be monitored and tested for AI. - There are no commercial poultry premises within the 10 km surveillance zone. ? Cleaning and Disinfection (C&D) of the backyard premises has been completed. The backyard premises will be under a monitoring program and release of the quarantine will not occur for at least 90 days following depopulation and is contingent on post C&D environmental testing. ? A thorough epidemiological investigation was conducted in relation to the backyard infected premises. No traces into or out of the infected flock were found and it was determined that the AI H5N8 event was related to wild bird exposure. The HPAI H5N8 virus has NOT been found in commercial poultry anywhere in the United States.[/TD]
[/TR]
[/TABLE]
[/TD]
[/TR]
[TR]
[TD] [/TD]
[/TR]
[TR]
[TD] Control measures
[TABLE="class: TableFoyers, width: 915"]
[TR]
[TD="class: filtrer_th ta_left"]Measures applied[/TD]
[TD]
  • Stamping out
  • Quarantine
  • Movement control inside the country
  • Disinfection of infected premises/establishment(s)
  • Vaccination prohibited
  • No treatment of affected animals
[/TD]
[/TR]
[TR]
[TD="class: filtrer_th ta_left"]Measures to be applied[/TD]
[TD]
  • No other measures
[/TD]
[/TR]
[/TABLE]
[/TD]
[/TR]
[TR]
[TD] [/TD]
[/TR]
[TR]
[TD] Future Reporting
[TABLE="class: TableFoyers, width: 915"]
[TR]
[TD="class: filtrer"]The event is continuing. Weekly follow-up reports will be submitted.[/TD]
[/TR]
[/TABLE]
[/TD]
[/TR]
[TR]
[TD]
[/TD]
[/TR]
[/TABLE]

OIE
 
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