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PostPosted: Mon Dec 22, 2014 12:14 pm 
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Joined: Wed Aug 19, 2009 10:42 am
Posts: 56044
Location: Pittsburgh, PA USA
President, Science Branch, Health Ministry, Canadian Food Inspection Agency, Ottawa, Canada
Summary
Report type Follow-up report No. 3
Date of start of the event 30/11/2014
Date of pre-confirmation of the event 01/12/2014
Report date 19/12/2014
Date submitted to OIE 19/12/2014
Reason for notification Reoccurrence of a listed disease
Date of previous occurrence 01/2008
Manifestation of disease Clinical disease
Causal agent Highly pathogenic avian influenza virus
Serotype H5N2
Nature of diagnosis Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports Immediate notification (03/12/2014)
Follow-up report No. 1 (09/12/2014)
Follow-up report No. 2 (12/12/2014)
Follow-up report No. 3 (19/12/2014)
New outbreaks (2)
Outbreak 1 (BC-2014-NAI-010) Langley, BRITISH COLUMBIA
Date of start of the outbreak 13/12/2014
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Destroyed Slaughtered
Birds 53200 15 15 53185 0
Affected population BC-2014-NAI-010 Table egg layer farm.
Outbreak 2 (BC-2014-NAI-011) Langley, BRITISH COLUMBIA
Date of start of the outbreak 16/12/2014
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Destroyed Slaughtered
Birds 11800 60 60 0
Affected population BC-2014-NAI-011 Chicken broiler breeder farm.
Summary of outbreaks Total outbreaks: 2
Total animals affected
Species Susceptible Cases Deaths Destroyed Slaughtered
Birds 65000 75 75 53185 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 0.12% 0.12% 100.00% **
*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 The two (2) new outbreaks in this report are located in the same area as all other outbreaks in the province of British Columbia. The CFIA continues to implement stamping out measures.
Control measures
Measures applied
Stamping out
Quarantine
Movement control inside the country
Screening
Zoning
Disinfection of infected premises/establishment(s)
Vaccination prohibited
No treatment of affected animals
Measures to be applied
No other measures
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.

http://www.oie.int/wahis_2/public/wahid ... rtid=16796

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PostPosted: Tue Dec 23, 2014 10:08 am 
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Joined: Wed Aug 19, 2009 10:42 am
Posts: 56044
Location: Pittsburgh, PA USA
niman wrote:
Avian flu outbreak that started in Chilliwack crosses U.S. border
Image
Most of the western half of Chilliwack is in the CFIA's avian influenza restricted zone.— Image Credit: Paul J. Henderson
0
by Paul J. Henderson - Chilliwack Times
posted Dec 18, 2014 at 9:00 AM
The Fraser Valley’s outbreak of avian influenza has now crossed the U.S. border and at least one American expert isn’t impressed with the Canadian Food Inspection Agency’s (CFIA) response.

Biomedical researcher Henry Niman is concerned the highly pathogenic strain will spread throughout North America as wild birds begin winter migration.

No poultry farms in the U.S. were impacted by Wednesday, but the U.S. Department of Agriculture (USDA) reported Tuesday that the H5N2 strain found in Chilliwack, Abbotsford and now Langley has been detected in northern pintail ducks in Lynden, Wash., fewer than 15 kilometres from the Fraser Valley cluster.

“The finding in Whatcom County was quickly reported and identified due to increased surveillance for avian influenza in light of the [highly pathogenic] H5N2 avian influenza affecting commercial poultry in British Columbia, Canada,” said a USDA statement issued Dec. 16.

In addition, a highly pathogenic H5N8 strain was found in Washington in three captive falcons that were fed hunter-killed wild birds.

Niman, who is president of Pittsburgh-based Recombinomics, analyzes viral evolution and the spread of disease.

“The wild birds really can’t be controlled, which is why this is a very big deal that could have a serious impact on poultry markets throughout the Americas,” Niman told the Times.

“Poultry farmers throughout North America should be worried.”

Niman says the CFIA is trying to “manage the message” and downplay concerns, releasing information too slowly, something that could have far-reaching consequences.

As of Wednesday morning, the CFIA had reported 10 farms in the Fraser Valley affected by the current outbreak. Approximately 233,800 chickens and turkeys have either died from the illness or been euthanized.

The first farm where avian flu was detected was a broiler breeder with 13,000 birds in Chilliwack, although no other farms in the city have been directly impacted by the outbreak. Eight of the other farms affected are in Abbotsford—three turkey and five broiler breeders.

The latest and the largest is a 53,000 table egg layer farm in Langley.

The CFIA did say Wednesday that the H5N8 was the first time a "Eurasian lineage highly pathogenic H5 virus has caused an outbreak of avian influenza in poultry in North America."

"The appearance of this particular reassortant virus is significant due to its ability to cause high mortality in domestic poultry," a Dec. 17 CFIA statement said.

No H5N2 illness has been reported in humans, but the CFIA said that as a precautionary measure, public health officials are monitoring workers who are exposed to affected poultry.

While the illness is not dangerous to people, and the outbreak is likely to have little or no impact on consumers, the industry is feeling the effects as a three-level disease control zone has been set up in the province. The largest primary control zone covers the entire southern half of the province from Highway 16 south. Then there is a restricted zone from that encompassing an area between three and 10 kilometres away from infected farms. Chilliwack residents may have seen signs identifying this zone on the eastern side of Vedder Road closer to the Vedder River. The highest restrictions are in the “infected” zone, the area within three kilometres from any known infected premises, which in Chilliwack means most of Greendale and Yarrow.

The CFIA did not respond to a request to comment on Niman’s suggestion they have under-reacted to the current outbreak.

“All of this will come out eventually and pretending it isn’t as big as it is doesn’t solve the problem,” Niman said. “Most of the spread will likely be through independent introductions by wild birds, which is very hard to control.”

http://www.bclocalnews.com/news/286246111.html

UPDATE: 11th farm hit with Avian flu, outbreak that started in Chilliwack enters U.S.

by Paul J. Henderson - Chilliwack Times
posted Dec 18, 2014 at 9:00 AM— updated Dec 19, 2014 at 9:11 AM
The Fraser Valley’s outbreak of avian influenza has now crossed the U.S. border and at least one American expert isn’t impressed with the Canadian Food Inspection Agency’s (CFIA) response.

Biomedical researcher Henry Niman is concerned the highly pathogenic strain will spread throughout North America as wild birds begin winter migration.

No poultry farms in the U.S. were impacted by Wednesday, but the U.S. Department of Agriculture (USDA) reported Tuesday that the H5N2 strain found in Chilliwack, Abbotsford and now Langley has been detected in northern pintail ducks in Lynden, Wash., fewer than 15 kilometres from the Fraser Valley cluster.

“The finding in Whatcom County was quickly reported and identified due to increased surveillance for avian influenza in light of the [highly pathogenic] H5N2 avian influenza affecting commercial poultry in British Columbia, Canada,” said a USDA statement issued Dec. 16.

In addition, a highly pathogenic H5N8 strain was found in Washington in three captive falcons that were fed hunter-killed wild birds.

Niman, who is president of Pittsburgh-based Recombinomics, analyzes viral evolution and the spread of disease.

“The wild birds really can’t be controlled, which is why this is a very big deal that could have a serious impact on poultry markets throughout the Americas,” Niman told the Times.

“Poultry farmers throughout North America should be worried.”

Niman says the CFIA is trying to “manage the message” and downplay concerns, releasing information too slowly, something that could have far-reaching consequences.

As of Friday morning, the CFIA had reported 11 farms in the Fraser Valley affected by the current outbreak. Approximately 245,600 chickens and turkeys have either died from the illness or been euthanized.

The first farm where avian flu was detected was a broiler breeder with 13,000 birds in Chilliwack, although no other farms in the city have been directly impacted by the outbreak. Eight of the other farms affected are in Abbotsford—three turkey and five broiler breeders.

The 10th and largest was a 53,000 table egg layer farm in Langley on Dec. 13. Then on Dec. 17, a second Langley farm, a 11,800-chicken broiler breeder was added to the list.

The CFIA said Wednesday that the H5N8 was the first time a "Eurasian lineage highly pathogenic H5 virus has caused an outbreak of avian influenza in poultry in North America."

"The appearance of this particular reassortant virus is significant due to its ability to cause high mortality in domestic poultry," a Dec. 17 CFIA statement said.

No H5N2 illness has been reported in humans, but the CFIA said that as a precautionary measure, public health officials are monitoring workers who are exposed to affected poultry.

In response to questions from Niman that the CFIA has not acted quickly enough, a spokesperson said the agency "is committed to sharing new information related to the avian influenza situation in a timely manner. The Agency regularly posts updates to the web via the Infected Premises Table, the Timeline of Events, and online statements."

CFIA agrees that wild birds are a problem since they cannot be controlled, which is why biosecurity on farms plays a "very important role."

"Wild birds are certainly a serious concern regarding the spread of this disease as wild birds are natural reservoirs of influenza viruses and have natural migration pathways," the agency said.

The CFIA has not detected either H5N2 or H5N8 in wild birds anywhere in Canada in 2014.

While the illness is not dangerous to people, and the outbreak is likely to have little or no impact on consumers, the industry is feeling the effects as a three-level disease control zone has been set up in the province. The largest primary control zone covers the entire southern half of the province from Highway 16 south. Then there is a restricted zone from that encompassing an area between three and 10 kilometres away from infected farms. Chilliwack residents may have seen signs identifying this zone on the eastern side of Vedder Road closer to the Vedder River. The highest restrictions are in the “infected” zone, the area within three kilometres from any known infected premises, which in Chilliwack means most of Greendale and Yarrow.

“All of this will come out eventually and pretending it isn’t as big as it is doesn’t solve the problem,” Niman said. “Most of the spread will likely be through independent introductions by wild birds, which is very hard to control.”

_________________
www.twitter.com/hniman


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