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PostPosted: Thu Jan 08, 2015 6:01 pm 
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The Duck Page with Hershey and Friends shared California Waterfowl's post.
January 5 at 9:52pm ·
Avian flu in now in California too -darlene

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/hersheyduck

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PostPosted: Thu Jan 08, 2015 8:01 pm 
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H5N8 found in another US wild bird; study ties H5N1 to migrations
Filed Under: Avian Influenza (Bird Flu)
Robert Roos | News Editor | CIDRAP News | Jan 08, 2015
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Gadwall duck
Alexandra MacKenzie / Flickr cc
Officials confirmed H5N8 in a wild gadwall duck in California.
The US Department of Agriculture (USDA) said yesterday that an H5N8 avian flu virus has been found in another wild bird in the West, and the agency has released more information about an H5N2 avian flu outbreak in southeastern Washington state.

In a report to the World Organization for Animal Health (OIE), the USDA said an H5N8 virus was found in a hunter-killed gadwall duck in the Pacific flyway. The agency did not list the specific location, but a Jan 5 Facebook post from the California Waterfowl Association said the duck was shot in Butte County in north-central California.

The USDA said genetic sequences from the gadwall duck virus are "essentially identical" to corresponding sequences from an H5N8 virus reported Dec 16 in a captive gyrfalcon in Whatcom County in northwestern Washington state. The gyrfalcon had been fed hunter-killed birds.

H5N2 in Washington
In a separate report to the OIE yesterday, the USDA said an H5N2 virus from an outbreak in a 178-bird backyard poultry flock in Benton County in southeastern Washington is 99% similar to the H5N2 virus that was found in a wild pintail duck in Whatcom County in mid-December. Whatcom County borders a part of British Columbia where commercial poultry farms were recently hit by H5N2 outbreaks, but no H5N2 or H5N8 outbreaks have been reported in US commercial poultry recently.

Two other backyard poultry flocks with links to the Benton County flock have been quarantined, and test results were pending, according to the USDA report. The Tri-City Herald, a newspaper in Benton County, reported Jan 6 that a second backyard flock of about 500 poultry in the area, with links to the first one, had been hit by avian flu.

The second outbreak was confirmed yesterday in a statement by the Washington State Department of Agriculture (WSDA), which said authorities completed work to control the virus's spread at the two sites on Jan 6. The agency set up a quarantine zone covering places within 10 kilometers of the two outbreak sites, saying no poultry or poultry products can be moved out of the zone without a special permit.

The WSDA said the presence of highly pathogenic H5N8 and H5N2 viruses in wild waterfowl continues to pose a risk to poultry, urging owners to protect their flocks from contact with wild birds.

Meanwhile, German authorities detected H5N8 viruses this week in a captive stork and in two hunter-killed mallard ducks, according to separate machine-translated media reports posted by FluTrackers, an infectious-disease news message board, and by the blog Avian Flu Diary.

The infected stork was in the Rostock Zoo in Mecklenburg–Western Pomerania state in northeastern Germany, and the ducks were killed in Saxony-Anhalt, another northeastern state, according to the reports. Germany reported two infected poultry flocks in different regions in November and December.

Study: H5N1 outbreaks follow migrations
In other developments, scientists writing this week in the Proceedings of the National Academy of Sciences (PNAS) say they found a close association between H5N1 outbreaks and wild bird migrations in Asia.

The authors, from several countries, used H5N1 sequence data, satellite data on bird migration patterns, and records of H5N1 outbreaks to evaluate the role of migratory birds in the spread of H5N1.

They found that the timing of outbreaks matched up with that of migrations within each flyway and that the migration network better reflected the viral sequence data than other networks did, suggesting that migrations contribute to seasonal H5N1 outbreaks and large-scale transmission of the virus along flyways.

"These findings have potentially far-reaching consequences, improving our understanding of how bird migration drives the periodic reemergence of H5N1 in Asia," the authors wrote.

See also:

Jan 7 OIE report on H5N8 detection

Jan 5 California Waterfowl Association Facebook post

Jan 7 OIE report on H5N2

Jan 6 Tri-City Herald story

Jan 7 WSDA statement

Jan 8 FluTrackers post on H5N8 in stork

Jan 7 Avian Flu Diary post on H5N8 in mallards

Jan 6 PNAS report on H5N1 and bird migrations

http://www.cidrap.umn.edu/news-perspect ... migrations

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PostPosted: Fri Jan 09, 2015 12:44 am 
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Avian Influenza Found in Wild Bird in Butte County, California


January 5, 2015: A confirmed positive Avian Influenza (AI) serotype H5N8 was found in a wild Gadwall in Butte County, California. The pathogenicity of the AI strain is still being confirmed, but the National Veterinary Services Laboratories (NVSL) report it is consistent with Highly Pathogenic Avian Influenza (HPAI). The bird was collected as a part of enhanced surveillance by USDA Wildlife Services and is not a surprise due to given migratory patterns. This particular strain is not considered a public health threat and has not been found in commercial poultry.
Increased biosecurity and keeping birds housed away from open water sources that attract wild waterfowl is advised during this time. If you observe signs of illness or increased mortality, please call your private veterinarian, Sick Bird Hotline at 866-922-2473, CDFA District Office or USDA.

http://www.cdfa.ca.gov/ahfss/Animal_Hea ... uenza.html

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PostPosted: Tue Jan 13, 2015 7:27 pm 
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California chickens at increased risk for severe ‘bird flu’ strain
January 13, 2015

Owners of backyard chickens who observe illness or increased mortality in their birds should call their veterinarian or the California Department of Food Agriculture. (Courtesy photo)
One California, One UC Davis

UC Davis experts are urging backyard chicken enthusiasts and commercial poultry owners to practice strong biosecurity measures to prevent contact with wild birds, due to highly pathogenic strains of avian influenza recently detected in migratory waterfowl in British Columbia, Washington, Oregon, and Butte County, California.

The current detected strains, H5N2 and H5N8, are not a risk to human health and have not been found in commercial poultry in the United States. However, commercial poultry flocks in British Columbia and backyard flocks in Washington and Oregon have been affected.

Avian influenza — commonly called “bird flu” — is a disease found in a wide variety of domesticated and wild birds. Once introduced into an area, infection can spread through bird-to-bird contact or through contact with contaminated clothing, shoes, hands, feed, water or equipment. Because waterfowl are reservoirs for avian influenza strains that can be fatal to domestic poultry (yet often show little to no signs in waterfowl), backyard and commercial chickens raised near areas commonly used by migrating waterfowl are at risk of transmission.

“Due to normal waterfowl migration along the Pacific Flyway, during the winter there are approximately eight times the number of waterfowl in California than what we will see three months from now,” said Maurice Pitesky, a poultry specialist with the UC Davis School of Veterinary Medicine. “There are lots of birds that winter and establish roosting and feeding habitat in California wetlands and agricultural crops. If you are a poultry owner — either backyard or commercial — and live in proximity to waterfowl and their habitat, your birds are at risk.”

Owners of backyard chickens who observe illness or increased mortality in their birds should call their veterinarian or the California Department of Food Agriculture sick bird hotline at (866) 922-2473.

The California Animal Health and Food Safety Laboratory System includes four diagnostic labs in Davis, Turlock, Tulare and San Bernardino. The labs encourage veterinarians and owners of backyard chickens to submit sick or recently dead birds for necropsy (postmortem) examination. The exam is free of charge for California backyard flock owners of fewer than 1,000 birds (chicken, turkey, waterfowl and squabs). For more information, contact (530) 752-8700 or visit the CAFHS website.

Reduce the risk of bird flu

To reduce the risk of avian influenza transmission, chickens should be kept separate from wild birds and monitored for signs of illness or increased mortality. The CDFA also urges owners to take the following necessary and crucial precautions:

If you have a pond or body of water that can attract waterfowl to or near your facility, consider draining if feasible.
Provide housing to confine domestic poultry and/or enclose an exercise area with netting.
Avoid use of water that comes from sources where waterfowl may congregate during migration.
Ideally, owners of poultry should try to avoid waterfowl hunting during migration. Otherwise, ensure clothing, footwear, vehicles, etc. used during hunts are laundered and/or disinfected.
Permit only essential workers and vehicles on premises and provide disposable coveralls, boots and head coverings for visitors.
Clean and disinfect vehicles and equipment entering or leaving the premises.
Control movement associated with the disposal of mortality, litter and manure.
Additional resources

Information on good biosecurity and hygiene precautions to keep backyard flocks healthy can be found at:

UC Cooperative Extension: Backyard Poultry Resources
USDA Animal and Plant Health Inspection Service
California Department of Food and Agriculture Avian Health Program
Reports of dead, wild birds can be directed to the Wildlife Investigations Lab at (916) 358-2790. There is also a Web application for submission.

CAHFS at the UC Davis School of Veterinary Medicine

The California Animal Health and Food Safety Laboratory System is the backbone of California’s warning system helping to protect the health of the state’s livestock and poultry. Operated through the UC Davis School of Veterinary Medicine, CAHFS provides appropriate and timely diagnostic support to safeguard the health of California’s dairy, livestock and poultry industries and to protect the public health from animal disease.

UC Davis is growing California

At UC Davis, we and our partners are nourishing our state with food, economic activity and better health, playing a key part in the state’s role as the top national agricultural producer for more than 50 years. UC Davis is participating in UC’s Global Food Initiative launched by UC President Janet Napolitano, harnessing the collective power of UC to help feed the world and steer it on the path to sustainability.

About UC Davis

UC Davis is a global community of individuals united to better humanity and our natural world while seeking solutions to some of our most pressing challenges. Located near the California state capital, UC Davis has more than 34,000 students, and the full-time equivalent of 4,100 faculty and other academics and 17,400 staff. The campus has an annual research budget of over $750 million, a comprehensive health system and about two dozen specialized research centers. The university offers interdisciplinary graduate study and 99 undergraduate majors in four colleges and six professional schools.

Additional information:

Related: UC Davis to lead new USAID program to develop disease-resistant, heat-tolerant chickens for Africa
Related: Chicken gene shines light on cause of craniofacial birth defects
Related: UC Davis awarded $100 million to lead program to predict and prevent pandemic threats
Media contact(s):

Maurice Pitesky, School of Veterinary Medicine, (530) 752-3215, mepitesky@ucdavis.edu
Monique Gunther Garcia, School of Veterinary Medicine, (530) 752-4272, mgunther@ucdavis
Pat Bailey, UC Davis News Service, (530) 752-9843, pjbailey@ucdavis.edu

http://news.ucdavis.edu/search/news_det ... o?id=11137

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PostPosted: Mon Jan 19, 2015 8:13 am 
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California chickens at increased risk for severe bird flu strain

Posted: Monday, January 19, 2015 12:30 am
University of California-Davis
DAVIS, Calif. — University of California-Davis experts are urging backyard chicken enthusiasts and commercial poultry owners to practice strong biosecurity measures to prevent contact with wild birds, due to highly pathogenic strains of avian influenza recently detected in migratory waterfowl in British Columbia, Washington, Oregon, and Butte County, California.
Live Oak Bank 300 X 250AGSEAL - SIDE AD 300x250.jpg
The current detected strains, H5N2 and H5N8, are not a risk to human health and have not been found in commercial poultry in the United States. However, commercial poultry flocks in British Columbia and backyard flocks in Washington and Oregon have been affected.
Avian influenza — commonly called “bird flu” — is a disease found in a wide variety of domesticated and wild birds. Once introduced into an area, infection can spread through bird-to-bird contact or through contact with contaminated clothing, shoes, hands, feed, water or equipment. Because waterfowl are reservoirs for avian influenza strains that can be fatal to domestic poultry (yet often show little to no signs in waterfowl), backyard and commercial chickens raised near areas commonly used by migrating waterfowl are at risk of transmission.
“Due to normal waterfowl migration along the Pacific Flyway, during the winter there are approximately eight times the number of waterfowl in California than what we will see three months from now,” said Maurice Pitesky, a poultry specialist with the UC Davis School of Veterinary Medicine. “There are lots of birds that winter and establish roosting and feeding habitat in California wetlands and agricultural crops. If you are a poultry owner — either backyard or commercial — and live in proximity to waterfowl and their habitat, your birds are at risk.”
Owners of backyard chickens who observe illness or increased mortality in their birds should call their veterinarian or the California Department of Food Agriculture sick bird hotline at 866-922-2473.
The California Animal Health & Food Safety Laboratory System includes four diagnostic labs in Davis, Turlock, Tulare and San Bernardino. The labs encourage veterinarians and owners of backyard chickens to submit sick or recently dead birds for necropsy (postmortem) examination. The exam is free of charge for California backyard flock owners of fewer than 1,000 birds (chicken, turkey, waterfowl and squabs). For more information, contact 530-752-8700 or visit the CAFHS website.
Reduce the risk
To reduce the risk of avian influenza transmission, chickens should be kept separate from wild birds and monitored for signs of illness or increased mortality. The CDFA also urges owners to take the following necessary and crucial precautions:
• If you have a pond or body of water that can attract waterfowl to or near your facility, consider draining if feasible.
• Provide housing to confine domestic poultry and/or enclose an exercise area with netting.
• Avoid use of water that comes from sources where waterfowl may congregate during migration.
• Ideally, owners of poultry should try to avoid waterfowl hunting during migration. Otherwise, ensure clothing, footwear, vehicles, etc. used during hunts are laundered and/or disinfected.
• Permit only essential workers and vehicles on premises and provide disposable coveralls, boots and head coverings for visitors.
• Clean and disinfect vehicles and equipment entering or leaving the premises.
• Control movement associated with the disposal of mortality, litter and manure.

http://www.poultrytimes.com/poultry_tod ... 1d111.html

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PostPosted: Fri Jan 23, 2015 1:00 pm 
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Location: Pittsburgh, PA USA
Highly pathogenic avian influenza,
United States of America

Information received on 22/01/2015 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 Follow-up report No. 4
Date of start of the event 10/12/2014
Date of pre-confirmation of the event 14/12/2014
Report date 22/01/2015
Date submitted to OIE 22/01/2015
Reason for notification Reoccurrence of a listed disease
Date of previous occurrence 2004
Manifestation of disease Clinical disease
Causal agent Highly pathogenic avian influenza
Serotype H5N8
Nature of diagnosis Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports 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)
Follow-up report No. 4 (22/01/2015)
New outbreaks (4)
Outbreak 1 Butte County, Butte, CALIFORNIA
Date of start of the outbreak 02/01/2015
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Not applicable
Affected animals
Species Susceptible Cases Deaths Destroyed Slaughtered
Gadwall:Anas strepera(Anatidae)
Affected population Hunter harvested wild gadwall duck
Outbreak 2 Yolo county, Yolo, CALIFORNIA
Date of start of the outbreak 09/01/2015
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 Hunter harvested wild American green-winged teal duck.
Outbreak 3 Davis County, Davis, UTAH
Date of start of the outbreak 09/01/2015
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Not applicable
Affected animals
Species Susceptible Cases Deaths Destroyed Slaughtered
American wigeon:Anas americana(Anatidae)
Affected population Hunter harvested wild American wigeon duck.
Outbreak 4 Gooding County, Gooding, IDAHO
Date of start of the outbreak 16/01/2015
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Not applicable
Affected animals
Species Susceptible Cases Deaths Destroyed Slaughtered
Mallard:Anas platyrhynchos(Anatidae)
Affected population Hunter harvested wild mallard duck
Summary of outbreaks Total outbreaks: 4
Total animals affected
Species Susceptible Cases Deaths Destroyed Slaughtered
Gadwall:Anas strepera(Anatidae) **
Green-winged Teal:Anas carolinensis(Anatidae) **
American wigeon:Anas americana(Anatidae) **
Mallard:Anas platyrhynchos(Anatidae) **
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Gadwall:Anas strepera(Anatidae) ** ** ** **
Green-winged Teal:Anas carolinensis(Anatidae) ** ** ** **
American wigeon:Anas americana(Anatidae) ** ** ** **
Mallard:Anas platyrhynchos(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 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 (including wild bird surveillance of hunter harvested birds) in response to the HPAI H5N8 wild bird related event. Novel avian influenza virus of Eurasian origin (EA-H5N8 clade 2.3.4.4) spread rapidly along wild bird migratory pathways during 2014. Introduction of this EA-H5N8 virus into the Pacific Flyway sometime during 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 this EA/AM H5N2-reassortant detected in Canada and the US. These findings are not unexpected as the EA-H5N8 virus continues to circulate. The EA H5 clade 2.3.4.4 viruses are highly pathogenic for poultry. As part of the increased AI surveillance of wild birds (performed by testing hunter harvested birds), H5N8 with an amino acid sequence at the HA cleavage site that is consistent with highly pathogenic avian influenza has been identified in wild ducks in the Pacific flyway. HA and NA sequence fragments from these viruses, and the virus from the backyard finding, are essentially identical to that found in the reported gyrfalcon. Update on the Oregon backyard premises as of 17 January 2015: • A 10 km active surveillance zone was initiated for avian influenza. o All surveillance and testing has been negative for AI. The HPAI EA-H5N8 virus has NOT been found in commercial poultry anywhere in the United States.
Control measures
Measures applied
Stamping out
Quarantine
Movement control inside the country
Disinfection of infected premises/establishment(s)
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) American wigeon real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 09/01/2015 Positive
National Veterinary Services Laboratories (NVSL) (National laboratory) Gadwall real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 02/01/2015 Positive
National Veterinary Services Laboratories (NVSL) (National laboratory) Gadwall virus sequencing 02/01/2015 Positive
National Veterinary Services Laboratories (NVSL) (National laboratory) Green-winged Teal real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 09/01/2015 Positive
National Veterinary Services Laboratories (NVSL) (National laboratory) Green-winged Teal virus sequencing 09/01/2015 Positive
National Veterinary Services Laboratories (NVSL) (National laboratory) Mallard real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 16/01/2015 Positive
National Veterinary Services Laboratories (NVSL) (National laboratory) Mallard virus sequencing 16/01/2015 Positive
NationalVeterinary Services Laboratories (NVSL) (National laboratory) American wigeon virus sequencing 09/01/2015 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.

http://www.oie.int/wahis_2/public/wahid ... rtid=17031

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