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PostPosted: Wed Jan 21, 2015 12:02 pm 
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USDA OIE report cites new Fujian reassortant serotype, H5N1 with 4 H5N8 genes and 4 North American, including N1.

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PostPosted: Wed Jan 21, 2015 12:03 pm 
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Information received on 20/01/2015 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
Date of start of the event 29/12/2014
Date of pre-confirmation of the event 16/01/2015
Report date 20/01/2015
Date submitted to OIE 20/01/2015
Reason for notification Reoccurrence of a listed disease
Date of previous occurrence 2004
Manifestation of disease Sub-clinical infection
Causal agent Highly pathogenic avian influenza virus
Serotype H5N1
Nature of diagnosis Laboratory (advanced)
This event pertains to a defined zone within the country
New outbreaks (1)
Outbreak 1 Whatcom County, Whatcom, WASHINGTON
Date of start of the outbreak 29/12/2014
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Not applicable
Affected animals
Species Susceptible Cases Deaths Destroyed Slaughtered
Green-winged Teal:Anas carolinensis(Anatidae)
Affected population Wild American green-winged teal duck
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Destroyed Slaughtered
Green-winged Teal:Anas carolinensis(Anatidae) **
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Green-winged Teal:Anas carolinensis(Anatidae) ** ** ** **
*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
Contact with wild species
Epidemiological comments As part of the increased AI surveillance of wild birds (performed by testing hunter harvested birds), another Eurasian H5 clade 2.3.4.4 virus has been identified through whole genome sequencing of the virus isolate. Introduction of the Eurasian (EA) H5N8 virus into the Pacific Flyway sometime during late 2014 has allowed mixing with North American (AM) lineage viruses and generated new combinations with genes from both EA and AM origin (or “reassortant” viruses) such as the EA/AM H5N2-reassortant detected in Canada and the United States. Such findings are not unexpected as the EA-H5N8 virus continues to circulate. A novel EA/AM H5N1-reassortant clade 2.3.4.4 was isolated from an American green-winged teal in Whatcom County, Washington. This H5N1 subtype is different from strain circulating in Asia. The gene constellation is as follows: Eurasian lineage genes (PB2, H5, NP, MP >99% identical to A/gyrfalcon/WA/41088/2014 H5N8); North American lineage genes (PB1 {98% identical to A/Northern pintail/Washington/40964/2014 H5N2}, PA, N1, NS of North American LPAI wild bird lineage. The HA cleavage site is compatible with strains that are highly pathogenic. This novel HPAI EA/AM H5N1-reassortant virus has NOT been found in commercial poultry anywhere in the United States.
Control measures
Measures applied
Vaccination prohibited
No treatment of affected animals
Measures to be applied
No other measures
Diagnostic test results
Laboratory name and type Species Test Test date Result
National Veterinary Services Laboratories (NVSL) (National laboratory) Green-winged Teal gene sequencing 16/01/2015 Positive
National Veterinary Services Laboratories (NVSL) (National laboratory) Green-winged Teal real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 16/01/2015 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.

http://www.oie.int/wahis_2/public/wahid ... newlang=en

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PostPosted: Wed Jan 21, 2015 1:38 pm 
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H5N1 North American map

https://www.google.com/maps/d/edit?auth ... lIkd857n8Q

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PostPosted: Wed Jan 21, 2015 3:19 pm 
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No update:

Update on Avian Influenza Findings in the Pacific Flyway
Last Modified: Jan 20, 2015 Print
The United States Department of Agriculture has confirmed several findings of highly pathogenic avian influenza (HPAI) in the Pacific flyway since mid-December. These findings are limited to wild birds and backyard poultry flocks that have access to the outdoors. These viruses have NOT been found in any commercial poultry in the United States. Commercial poultry producers follow strict biosecurity practices and raise their birds in very controlled environments.

No human cases with these viruses have been detected in the United States, Canada or internationally. There is no immediate public health concern as a result of these detections.

Backyard poultry findings confirmed by USDA’s National Veterinary Services Laboratories include:

HPAI H5N8 in a backyard poultry flock in Winston, Oregon (December 19)
HPAI H5N2 in a backyard poultry flock in Benton County, Washington (January 3)
HPAI H5N2 in a backyard poultry flock in Benton County, Washington (January 9)
HPAI H5N2 in a backyard poultry flock in Clallam County, Washington (January 16)
HPAI H5N2 in a backyard poultry flock in Canyon County, Idaho (January 16)


Captive wild bird findings confirmed by USDA’s National Veterinary Services Laboratories:

HPAI H5N8 in captive gyrfalcons in Whatcom County, Washington (December 16)
HPAI H5N2 in captive falcons in Canyon County, Idaho (January 16)


Wild bird findings confirmed by USDA’s National Veterinary Services Laboratories are available here.

The findings are part of our increased AI surveillance in the Pacific flyway and increased outreach to backyard poultry enthusiasts. USDA is coordinating closely with its partners, including Washington, Oregon and California State officials, the U.S. Department of the Interior and the U.S. Department of Health and Human Services, on avian influenza surveillance, reporting, and control efforts. The United States has the strongest AI surveillance program in the world, where we actively look for the disease and provide 100% compensation to affected producers to encourage reporting.

Because the H5N2 and H5N8 avian influenza strains are currently circulating in migratory birds in the Pacific flyway, we anticipate our active surveillance will result in additional findings in both wild birds and in backyard flocks with access to the outdoors. However, because of our commercial producers’ continuing vigilance, U.S. poultry is safe.

USDA continues to report these findings to the World Animal Health Organization (OIE) as part of the ongoing Pacific flyway avian influenza incident. USDA is working with trading partners to minimize trade impacts on poultry and poultry products as much as possible.

While neither virus has been found in commercial poultry, USDA emphasizes that poultry, poultry products and wild birds are safe to eat if they are properly handled and cooked to a temperature of 165 degrees Fahrenheit.

All bird owners, whether commercial producers or backyard enthusiasts, need to continue practicing good biosecurity, preventing contact between their birds and wild birds, and reporting sick birds or unusual bird deaths to State/Federal officials, either through your state veterinarian or through USDA’s toll-free number at 1-866-536-7593. Additional information on biosecurity for backyard flocks can be found at healthybirds.aphis.usda.gov

http://www.aphis.usda.gov/wps/portal/ap ... ian_health

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PostPosted: Wed Jan 21, 2015 3:20 pm 
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No update:

WILD BIRD POSITIVE HIGHLY PATHOGENIC AVIAN INFLUENZA CASES IN THE UNITED STATES
Case # COLLECTION DATE SPECIES COUNTY STATE SUBTYPE SUBMITTER
1 12-08-2014 Northern Pintail Whatcom WA H5N2 Washington State
2 12-20-2014 Mallard Lane OR H5N2 USDA-APHIS
3 12-28-2014 Gadwall Butte CA H5N8 USDA-APHIS
4 01-02-2015 American Wigeon Davis UT H5N8 USDA-APHIS
5 01-07-2015 American Green-winged Teal Yolo CA H5N8 USDA-APHIS
6 01-07-2015 Mallard Gooding ID H5N8 USDA-APHIS

http://www.aphis.usda.gov/wildlife_dama ... STATES.pdf

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PostPosted: Wed Jan 21, 2015 5:16 pm 
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Hunter killed teal appears to be near Sumas.

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PostPosted: Wed Jan 21, 2015 5:35 pm 
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Map update

https://www.google.com/maps/d/edit?auth ... lIkd857n8Q

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PostPosted: Wed Jan 21, 2015 8:59 pm 
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Commentary

http://www.recombinomics.com/News/01211 ... atcom.html

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PostPosted: Wed Jan 21, 2015 11:29 pm 
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SDA confirms high-path H5N1 in Washington state

Jim Wappes | Editorial Director | CIDRAP News | Jan 21, 2015

Image
Green-winged teal
Winston Wong/ Flickr cc
Increased wild bird surveillance turned up the new virus in the hunter-killed duck.
In an apparent first, highly pathogenic avian influenza (HPAI) H5N1 has been detected in a US bird, in Washington state, according to a report filed by John Clifford, DVM, deputy administrator with the Animal and Plant Health Inspection Service of the US Department of Agriculture (USDA).

The report, posted yesterday by the World Organization for Animal Health (OIE), details a novel H5N1 virus found in a wild green-winged teal in Whatcom County that resulted from reassortment between a Eurasian (EA)-type H5N8 virus and North American avian influenza strains.

The virus was detected in a hunter-killed bird as part of increased avian flu surveillance in wild birds, according to the report. Whole-genome sequencing placed it in EA H5 clade 2.3.4.4.

Its PB2, H5, NP, and MP components are more than 99% identical to the HPAI H5N8 strain found in a wild gyrfalcon in the same county in December. It also contains PB1 genes that are 98% identical to those in a HPAI H5N2 found in a northern pintail duck, also in Whatcom County in December, as well as PA, N1, and NS components from a North American low-pathogenic wild bird lineage.

"Such findings are not unexpected as the EA-H5N8 virus continues to circulate," the report states. It concludes that the new H5N1 reassortant virus "has NOT been found in commercial poultry anywhere in the United States."

Information on the USDA Web site says that HPAI H5N1 has not been previously detected in the United States, but the OIE report lists 2004 as the date of a previous occurrence of the disease. That might, however, refer to the detection of HPAI H5N2 in Texas that year, or to a low-path avian flu outbreak. A phone call to Clifford's office could not immediately clarify the details.

H5N2, H5N8 in Idaho
In related news, the Idaho State Department of Agriculture (ISDA) said in a news release yesterday that HPAI H5N2 has been detected in a backyard poultry flock in that state, as well as in domestic falcons. In addition, HPAI H5N8 has been detected in wild birds in the state, the agency said.

The outbreak in the backyard flock was first reported by the media on Jan 19. The detections of both strains were the result of increased surveillance, the ISDA said.

The three affected falcons and the unspecified number of poultry are both in Canyon County in southwestern Idaho, and the H5N8-positive ducks were sampled in Gooding County south central Idaho.

"Both the H5N8 and H5N2 strains of HPAI confirmed in Idaho have previously been identified in incidents in backyard domestic poultry and wild fowl in other northwestern states. It is critical that backyard flock owners and poultry producers take every opportunity to prevent contact between domestic birds and the wild waterfowl that carry the avian influenza virus," Bill Barton, DVM, ISDA state veterinarian, said in the release.

See also:

Jan 20 OIE report

Jan 20 IDSA news release

Jan 20 USDA update on recent H5N2 and H5N8 detections

CIDRAP overview on avian flu in birds

http://www.cidrap.umn.edu/news-perspect ... gton-state

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PostPosted: Fri Jan 23, 2015 7:15 am 
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WILD BIRD HIGHLY PATHOGENIC AVIAN INFLUENZA CASES IN THE UNITED STATES 1
Case # COLLECTION DATE SPECIES COUNTY STATE SUBTYPE CONFIRMATIONDATE SUBMITTER
1 12-08-2014 Northern Pintail Whatcom WA EA/AM H5N2* 12-15-2014 Washington State DFW
2 12-20-2014 Mallard Lane OR EA/AM H5N2 * 12-12-2014 USDA-APHIS
3 12-28-2014 Gadwall Butte CA EA-H5N8 * 01-02-2015 USDA-APHIS
4 12-30-2014 American Greenwinged Teal Whatcom WA EA/AM H5N1 *01-16-2014 USGS-NWHC
5 01-02-2015 American Wigeon Davis UT EA-H5N8 * 01-09-2015 USDA-APHIS
6 01-07-2015 American Greenwinged Teal Yolo CA EA-H5N8 * 01-09-2015 USDA-APHIS
7 01-07-2015 Mallard Gooding County ID EA-H5N8 * 01-16-2015 USDA-APHIS

1 Avian H5 influenza (H5N8) originating from Eurasia (EA) spread rapidly along wild bird migratory pathways during 2014. Introduction of this virus into the Pacific Flyway sometime during 2014 has allowed mixing with North American (AM) origin viruses and generated new (novel) combinations with genes from both EA and AM origin (or “reassortant” viruses). These findings are not unexpected as the EA-H5 viruses continue to circulate in the flyways. This group of EA-H5 viruses is highly pathogenic in poultry. The ‘novel EA/AM H5N1’ is different from the ‘Asian HPAI H5N1’ and is a mixture of Eurasian and low pathogenic North American origin viruses.
* EA = Eurasian; AM=North American; the EA-H5 (2.3.4.4) are highly pathogenic to poultry

http://www.aphis.usda.gov/wildlife_dama ... STATES.pdf

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