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PostPosted: Fri Dec 05, 2014 1:47 pm 
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Multiple media stories are claiming the same "strain" of bird flu is in Fraser Valley as has been seen before, which is false. H5N2 refers to serotype, which has multiple "strains" which has not been disclosed (it is unclear if the strain or lineage is North American or Asian), and it is clear that it is high path and high path H5 has never been reported anywhere in Canada.

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PostPosted: Fri Dec 05, 2014 1:49 pm 
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Bird flu strain same as 2009 outbreak

By Jane Deacon
Thursday, December 4, 2014 2:34:33 PST PM
Image
The strain of avian flu affecting at least two Fraser Valley farms is a more virulent form of the same virus that hit the region in 2009.

A highly pathogenic form of the H5N2 bird flu virus has been confirmed on an Abbotsford turkey farm and a Chilliwack chicken farm, affecting upwards of 35,000 birds. Two other quarantined chicken farms have tested positive for bird flu, but await confirmation on the exact strain.

It’s a more contagious and fatal form of the same virus that affected some 70,000 B.C. birds in 2009, a sign of the way these viruses can mutate, said Harpreet Kochhar, Canada’s chief veterinary officer.

While the Canadian Food Inspection Agency believes the outbreak is limited to the four farms, Japan, Taiwan, Hong Kong and Korea have placed varying bans on the import of B.C. and Canadian poultry since confirmation of bird flu in the region Monday.

Health officials have not yet determined the source of the virus, having ruled out any potential connections between the first two sites. The presence of affected migratory birds remains a possibility.

The symptoms in some affected birds are puzzling, said Jane Pritchard, B.C.’s chief veterinary officer.

“We still don’t quite understand why, with the turkeys, we saw nothing, other than that they were dead,” she said. “They were suddenly dead birds. When we looked at them post-mortem, there was nothing to indicate what had killed them.”

The affected chickens displayed more typical symptoms — mostly concentrated in the respiratory system — including something called the “cathedral effect.”

“Usually when you walk into a flock, it’s quite busy and noisy,” said Pritchard. “But with avian influenza, you walk in and it’s silent. It’s quite scary when you actually observe it.”

The flocks on all four of the affected farms will be euthanized, although the vast majority have already died from the virus, said Pritchard.

Health officials maintain that there are no food safety risks when poultry is handled and prepared properly.

http://vancouver.24hrs.ca/2014/12/04/bi ... 9-outbreak

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PostPosted: Fri Dec 05, 2014 2:21 pm 
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VANCOUVER - The type of avian influenza responsible for an outbreak at poultry farms in southwestern British Columbia is H5N2, a source has confirmed — the same virus behind at least three other previous outbreaks at Canadian farms.

viewtopic.php?f=5&t=13046&start=4

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PostPosted: Fri Dec 05, 2014 2:26 pm 
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niman wrote:
VANCOUVER - The type of avian influenza responsible for an outbreak at poultry farms in southwestern British Columbia is H5N2, a source has confirmed — the same virus behind at least three other previous outbreaks at Canadian farms.

viewtopic.php?f=5&t=13046&start=4

VANCOUVER - The type of avian influenza responsible for an outbreak at poultry farms in southwestern British Columbia is H5N2, a source has confirmed — the same virus behind at least three other previous outbreaks at Canadian farms.
<snip>
— With files from Helen Branswell in Toronto
Note to readers: This is a corrected story. A previous version said a 2010 outbreak in Manitoba was high-path H5N2
viewtopic.php?f=5&t=13046&start=6

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PostPosted: Fri Dec 05, 2014 2:32 pm 
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niman wrote:
niman wrote:
VANCOUVER - The type of avian influenza responsible for an outbreak at poultry farms in southwestern British Columbia is H5N2, a source has confirmed — the same virus behind at least three other previous outbreaks at Canadian farms.

viewtopic.php?f=5&t=13046&start=4

VANCOUVER - The type of avian influenza responsible for an outbreak at poultry farms in southwestern British Columbia is H5N2, a source has confirmed — the same virus behind at least three other previous outbreaks at Canadian farms.
<snip>
— With files from Helen Branswell in Toronto
Note to readers: This is a corrected story. A previous version said a 2010 outbreak in Manitoba was high-path H5N2
viewtopic.php?f=5&t=13046&start=6

VANCOUVER - The virus at the centre of an avian influenza outbreak in British Columbia's Fraser Valley is the H5N2 strain, the Canadian Food Inspection Agency said Thursday — the same variety behind at least three previous outbreaks at Canadian farms.
http://www.winnipegfreepress.com/arts-a ... 18221.html

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PostPosted: Sat Dec 06, 2014 9:55 pm 
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The detection of H5N2 on a fifth farm, and the expectations of more, which are not linked to the ealrier farms, strongly suggests the HPAI H5 is in wild birds. A North American HPAI in wild birds has never been reported, increasing concerns that the H5 is Fujian clade 2.3.4 which is circulating in China as H5N2 (as well as H5N1, H5N3, H5N5, H5N6, and H5N8).

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PostPosted: Wed Dec 10, 2014 8:52 am 
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Commentary

http://www.recombinomics.com/News/12101 ... neage.html

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