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Bird flu (H5N1) in Norfolk Confirmed, November 12 +

Re: Bird flu (H5N1) in Norfolk Confirmed, November 12 +

vinny said:
please forgive me if im wrong but it seems its here to stay,and i wonder what has happened to that swan that disapeared,some wild animal or some unsuspecting person taken it to eat perhaps,theres bound to be the odd person going around that is hungry after all.
Click to expand...
I expect more positives on the culled birds. Wild bird testing, especially for H5N1 antibodies, is VERY iffy.
 
Re: Bird flu (H5N1) in Norfolk Confirmed, November 12 +

UK confirms deadly bird flu virus at second farm

(adds details)

LONDON, Nov 19 (Reuters) - Britain's farm ministry said on Monday the deadly H5N1 bird flu virus has been confirmed at a second poultry farm.

A ministry spokeswoman said the farm was one of the "dangerous contacts" established last week and all the turkeys at the site in the east of England have been culled.

"It appears the infection has been caught early because when the birds were inspected they appeared to be clinically healthy," she added.

The farm ministry announced last week it was culling turkeys at four sites which shared the same workforce as the Redgrave Park farm on the border of Norfolk and Suffolk where the original case was confirmed on November 13.

The spokeswoman said a new protection zone had been established around the second farm and a surveillance zone had been extended.

The virulent H5N1 strain has killed more than 200 people worldwide since 2003 and millions of birds either have died from it or been killed to prevent its spread.

All five farms are operated by Redgrave Poultry.

Britain had an outbreak of the H5N1 virus strain in February at a turkey farm in Suffolk, eastern England. (Reporting by Nigel Hunt; Editing by Peter Blackburn)

http://wap.alertnet.org/thenews/newsdesk/L19292353.htm
 
Re: Bird flu (H5N1) in Norfolk Confirmed, November 12 +

Another Bird Flu Outbreak Confirmed

Updated:16:14, Monday November 19, 2007

A second case of H5N1 bird flu has been found in turkeys, Government officials have confirmed.

The outbreak is at a farm on the Norfolk-Suffolk border, the Department for Environment, Food and Rural Affairs (Defra) said.

Sky News sources say the farm is Hill Meadow Farm in Knetishall.

http://news.sky.com/skynews/article/0,,30000-1293435,00.html
 
Re: Bird flu (H5N1) in Norfolk Confirmed, November 12 +

Second H5N1 case found in turkeys

4:38pm today

A second case of the deadly H5N1 strain of bird flu has been found in turkeys in a farm on the Norfolk/Suffolk border, the Department for the Environment, Food and Rural Affairs (Defra) said.

The farm was one of four where culls were taking place because of fears of "dangerous contact" with the initial case at Redgrave Park Farm, discovered last week.

All 9,000 turkeys have already been slaughtered at the new infected premises, which is operated by the same company as the site of the first outbreak.

The site of the new infection, Hill Meadow Farm, Knettishall, on the Norfolk/Suffolk border, is outside the original 3km protection zone set up around Redgrave Park farm, but inside the wider restricted area which covers Suffolk and much of Norfolk.

The premises were identified as having "dangerous contact" with the initial outbreak last week because staff for Redgrave Poultry, the operator of all five sites where culls have taken place, moved between the farms.

Defra said the birds appeared healthy when they were first inspected, but a precautionary cull was completed on Saturday.

Acting chief veterinary officer Fred Landeg said: "The laboratory test results highlight the importance of poultry keepers in the area being extremely vigilant.

"It is essential they practise the highest levels of biosecurity and report any suspicions of disease to their local animal health office."

A new 3km protection zone has been set up around the farm, and an extended surveillance zone which surrounds both sites has also been established.

http://www.thenorthernecho.co.uk/ne...3549.0.second_h5n1_case_found_in_turkeys.php?
 
Re: Bird flu (H5N1) in Norfolk Confirmed, November 12 +

Avian flu confirmed on second farm in Suffolk
19/11/2007 16:23:00
<!--link colour -->DEFRA has today (Monday 19 November) confirmed a second case of avian flu on a premises near Thetford in Suffolk.​
The highly pathogenic H5N1 virus has been identified on one of the four farms culled as ?dangerous contacts? to the initial case at Redgrave Farm, near Diss, last week.



On the five farms, all of which are run by Redgrave Poultry, a total of 28,600 birds have been culled so far.
Although DEFRA has not confirmed the results of tests carried out on the other farms, it is thought that tests on at least one other farm culled are negative.
The protection, surveillance and restricted zones are shown below. For a larger image click here.
​


<!--link colour -->
by Emily Padfield (About this Author)


http://www.fwi.co.uk/Articles/2007/11/19/108461/avian-flu-confirmed-on-second-farm-in-suffolk.html
 
Re: Bird flu (H5N1) in Norfolk Confirmed, November 12 +

Avian influenza update: H5N1 confirmed at second premises<!-- #EndEditable --><!-- #BeginEditable "Body" -->
Laboratory test results have today confirmed H5N1 Avian Influenza in turkeys at one of the Dangerous Contact premises. These premises were confirmed as a Dangerous Contact, and placed under restriction, on 14th November. Culling was completed on 17th November. On clinical inspection the flock appeared healthy which indicates the infection was in its early stages.
As a result of confirming disease this now becomes the second Infected Premises. A 3km radius Protection Zone is being placed around the premises on the Norfolk-Suffolk border and the existing Surveillance Zone is being extended.
Acting Chief Veterinary Officer Fred Landeg said:
"The laboratory test results today highlight the importance of poultry keepers in the area being extremely vigilant. It is essential they practice the highest levels of biosecurity and report any suspicions of disease to their local Animal Health office."
The national ban on bird gatherings remains firmly in place. Movement restrictions apply in the Protection, Surveillance and Restricted Zones, and bird keepers in those zones are required to house or otherwise isolate their birds from wild birds.
<!-- #EndEditable --><!-- #BeginEditable "Editors" -->Notes to editors<!-- #EndEditable -->

<!-- #BeginEditable "Notes" -->1. Further information and advice is available via the Defra Helpline on 08459 33 55 77. Poultry keepers can also call the Animal Health recorded information line for the latest updates, on 0844 884 4600.
2. The details on the measures that apply in the current zones can be found on the Defra website at www.defra.gov.uk/animalh/diseases/notifiable/disease/ai/latest-situation/index.htm
Avian Influenza is a disease of birds and whilst it can pass very rarely and with difficulty to humans, this requires extremely close contact with infected birds, particularly faeces. As a precautionary measure those who might have been exposed would be offered the appropriate treatment and protection in line with established protocols. Advice from the Food Standards Agency remains that properly cooked poultry and poultry products, including eggs, are safe to eat.
<!-- #EndEditable -->
End
Public enquiries: 08459 335577
News releases available on our website:
www.defra.gov.uk
Defra's aim is sustainable development​
<!--End of Central Content editable text area --><!--Date Modified and Published--><!-- InstanceBeginEditable name="PubDate" -->Page modified: 19 November 2007
Page published: 19 November 2007 16:20

http://www.defra.gov.uk/news/2007/071119b.htm
 
Re: Bird flu (H5N1) in Norfolk Confirmed, November 12 +

H5N1 virus spreads to second farm

Mon Nov 19, 2007 6:17pm GMT

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Related News


WHO hopes to resolve row on bird flu virus sharing



By Nigel Hunt
LONDON (Reuters) - The deadly H5N1 bird flu virus has spread to a second poultry farm in a fresh blow to a farm sector reeling from recent outbreaks of foot and mouth disease and bluetongue.
An agriculture ministry spokeswoman said the farm was one of the "dangerous contacts" established last week and all the turkeys at the site in the east of England have been culled.
"It appears the infection has been caught early because when the birds were inspected they appeared to be clinically healthy," she added.
Defra announced last week it was culling turkeys at four sites which shared the same workforce as the Redgrave Park farm on the border of Norfolk and Suffolk where the original case was confirmed on November 13.
Redgrave Poultry, which operates all five farms, said a small number of turkey culled at Hill Meadow farm in Knettishall, Norfolk had tested positive. The farm had 9,000 turkeys and is located just a few miles from Redgrave Park.
The company said culls had now been completed at all five farms. Results are still awaited from two of the sites.
"The laboratory test results today highlight the importance of poultry keepers in the area being extremely vigilant," acting Chief Veterinary Officer Fred Landeg said in a statement.
Landeg had warned on Friday there was a very high risk of finding new cases during the next few days with the spread of the disease still at a very early stage.
The ministry spokeswoman said a new protection zone had been established around the second farm and a surveillance zone had been extended.
The virulent H5N1 strain has killed more than 200 people worldwide since 2003 and millions of birds either have died from it or been killed to prevent its spread.
RELATED TO CZECH, GERMANY
Landeg has said the strain in Britain is closely related to outbreaks in the Czech Republic and Germany this summer.
The livestock sector has had a tough year which started with an earlier outbreak of the H5N1 virus strain in February at a turkey farm in Suffolk.
An outbreak of foot and mouth livestock disease, the first cases of bluetongue disease, which also affects sheep and cattle, and soaring feed costs have added to the sector's woes.
(Reporting by Nigel Hunt; Editing by Michael Roddy)

http://uk.reuters.com/article/topNe...ype=RSS&feedName=topNews&pageNumber=2&sp=true
 
Re: Bird flu (H5N1) in Norfolk Confirmed, November 12 +

No trace of bird flu on Dutch farm

Released: November 19, 2007 18:56


DEN HAAG- Investigations on a Dutch farm that was associated with the outbreak of bird flu in the east of England, have found nothing suspicious. It was reported monday by a spokesman for the Ministry of Agriculture.

The suspect farm, a hatchery, got control after recent shipments to Great Britain.

http://www.nu.nl/news/1322342/10/Geen_spoor_van_vogelgriep_op_Nederlands_bedrijf.html
 
Re: Bird flu (H5N1) in Norfolk Confirmed, November 12 +

Second H5N1 case found in turkeys

[FONT=Geneva,Arial,sans-serif]Press Association
Monday November 19, 2007 6:58 PM[/FONT]
[FONT=Geneva,Arial,sans-serif]A second case of the deadly H5N1 strain of bird flu has been found in turkeys in a farm on the Norfolk/Suffolk border, the Department for the Environment, Food and Rural Affairs (Defra) said.
The farm was one of four where culls were taking place because of fears of "dangerous contact" with the initial case at Redgrave Park Farm, discovered last week.
All 9,000 turkeys have already been slaughtered at the new infected premises, which is operated by the same company as the site of the first outbreak.
The site of the new infection, Hill Meadow Farm, Knettishall, on the Norfolk/Suffolk border, is outside the original 3km protection zone set up around Redgrave Park farm, but inside the wider restricted area which covers Suffolk and much of Norfolk.
The premises were identified as having "dangerous contact" with the initial outbreak last week because staff for Redgrave Poultry, the operator of all five sites where culls have taken place, moved between the farms.
Defra said the birds appeared healthy when they were first inspected, but a precautionary cull was completed on Saturday.
Acting chief veterinary officer Fred Landeg said: "The laboratory test results highlight the importance of poultry keepers in the area being extremely vigilant.
"It is essential they practise the highest levels of biosecurity and report any suspicions of disease to their local animal health office."
A new 3km protection zone has been set up around the farm, and an extended surveillance zone which surrounds both sites has also been established.

http://www.guardian.co.uk/uklatest/story/0,,-7088484,00.html
[/FONT]
 
Re: Bird flu (H5N1) in Norfolk Confirmed, November 12 +

Is it correct to assume that these tests are from a sample of the 9,000 cull population? If so, how many are actually tested in order to give an acceptable level of statistical significance?

J.
 
Re: Bird flu (H5N1) in Norfolk Confirmed, November 12 +

cartski said:
Is it correct to assume that these tests are from a sample of the 9,000 cull population? If so, how many are actually tested in order to give an acceptable level of statistical significance?

J.
Click to expand...
One. Majority does not rule in H5N1 testing.
 
Re: Bird flu (H5N1) in Norfolk Confirmed, November 12 +

cartski said:
Is it correct to assume that these tests are from a sample of the 9,000 cull population? If so, how many are actually tested in order to give an acceptable level of statistical significance?

J.
Click to expand...
I don't think you have a good grasp of the testing process. It is somewhat like dusting for fingerprints at a murder scene. If someone matches the bloody finger print, then that person was at the scene. Finger prints need not be found on every item tested.

However, the H5N1 testing goes well beyond a single test. For Weybridge to announce a positive, they would almost certainly have multiple confirmatory tests like a rapid test, and a PCR test, and a sequence from a PCR test, and an isolated virus. Moreover, in all likelihood multiple samples are positive for multiple collections from a single bird, as well as multiple birds.

Since the birds did not have clinical signs, it is unlikely that H5N1 had spread to most of the birds, and positives may have been limited to a small number of those tested (and far fewer than 9000 birds would be tested).

In addition to finding an H5N1 positive, virus grown from a sample would be sequenced and the sequence would not only show that it was influenza, but it was H5, and high path H5, and Qingahi H5N1, and Qingahi H5N1 that was cloely related to H5N1 from the earlier Redgrave positives as well as H5N1 from France, Germany, Czech Republic, Krasnodar, and Uva Lake.

The only real argument against a positve would be lab error (contamination many times by positive controls or a sample from another location).
 
Re: Bird flu (H5N1) in Norfolk Confirmed, November 12 +

niman said:
Commentary at

http://www.recombinomics.com/News/11190702/H5N1_Suffolk_Norfolk.html
Click to expand...
Commentary

H5N1 Spead on Suffolk and Norfolk Farms
Recombinomics Commentary
November 19, 2007

DEFRA is expected to announce confirmation of second case of avian flu on Monday afternoon.

It is understood that poultry have tested positive at one of the four farms culled as ?dangerous contacts? because of links to Redgrave Park Farm, in Suffolk, where disease was confirmed last week.

Test results on one of the farms where disease had been suspected turned out to be negative.

But tests on a second suspected case are believed to have shown the presence of the highly pathogenic H5N1 virus.

The detection of H5N1 on a second farm will significantly increase the number of farms in the protection zone. Earlier reports indicated ?preliminary? testing of dead turkeys at the Grove farm was negative. The Grove farm was within 2 miles of Redgrave Park, site of the initial outbreak (see satellite map). However, the other three suspect farms were significantly further north of the two farms with dead turkeys.

Confirmation at a second farm would likely lead to additional testing of samples from the Grove farm as well as more testing at neighboring farms and asymptomatic waterfowl.

The latest DEFRA announcement declined to specify when additional test results would be released.


.
 
Re: Bird flu (H5N1) in Norfolk Confirmed, November 12 +

niman said:
Commentary

http://www.recombinomics.com/News/11190703/H5N1_Suffolk_2.html
Click to expand...
Commentary

H5N1 Confirmed on Second Suffolk Farm
Recombinomics Commentary
November 19, 2007

http://www.defra.gov.uk/news/2007/071118a.htm"It appears the infection has been caught early because when the birds were inspected they appeared to be clinically healthy," she added.
Defra announced last week it was culling turkeys at four sites which shared the same workforce as the Redgrave Park farm on the border of Norfolk and Suffolk where the original case was confirmed on November 13.

Redgrave Poultry, which operates all five farms, said a small number of turkey culled at Hill Meadow farm in Knettishall, Norfolk had tested positive. The farm had 9,000 turkeys and is located just a few miles from Redgrave Park.

The company said culls had now been completed at all five farms. Results are still awaited from two of the sites.

The above comments confirm H5N1 at a second Suffolk farm, which creates a new restricted zone that extends into Norfolk. The lack of symptoms in the positive birds increases the likelihood of detecting H5N1 in the other two farms as well as adjacent farms, because the infections were recent and birds, including waterfowl, have not developed symptoms.

The sequence of the positives point toward a wild bird source because they are similar to wild bird H5N1 from the Czech Republic, Germany, France, and linked to wild bird isolates from Uva Lake in Mongolia which died during a massive outbreak in Mongolia and Tyva in the summer of 2006. Moreover, no evidence of bird flu was found at the Netherlands hatchery which had provided chicks to the owners of the infected turkeys.

Test results on the additional suspect farms, as well as neighboring farms would be useful to define the extent of the outbreak.


.
 
Re: Bird flu (H5N1) in Norfolk Confirmed, November 12 +

cartski said:
Is it correct to assume that these tests are from a sample of the 9,000 cull population? If so, how many are actually tested in order to give an acceptable level of statistical significance?

J.
Click to expand...
The official comment from DEFRA is

"Laboratory test results have today confirmed H5N1 Avian Influenza in turkeys at one of the Dangerous Contact premises."

which indicates more than one turkey had "confirmed" H5N1 indicating multiple positives on one or more turkeys.
 
Re: Bird flu (H5N1) in Norfolk Confirmed, November 12 +

EU boosts anti-bird flu measures in Britain
(AFP)

20 November 2007



BRUSSELS - European Union nations voted Tuesday to boost measures to protect against bird flu in Britain, after two outbreaks of the potentially lethal disease were discovered there.
?Member states voted in favour of a decision reinforcing the control measures in the UK following two confirmed outbreaks of avian influenza on the border of Norfolk and Suffolk in the past weeks,? the European Commission said.<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p>
The decision meant that protection zones in the affected areas would be ?slightly expanded?. The measures were confirmed by the EU?s standing committee on the food chain and animal health.<o:p></o:p>
On Monday, Britain confirmed a second outbreak of the H5N1 strain of avian influenza. It was found in turkeys on premises near a first infected farm, on the border between Norfolk and Suffolk in eastern England.<o:p></o:p>
Last Tuesday authorities ordered the slaughter of more than 6,000 poultry at a site near Diss in Norfolk.<o:p></o:p>
The cull was subsequently widened to four neighbouring premises, and in all nearly 29,000 birds were slaughtered.<o:p></o:p>
Suffolk, a large poultry producing area, was hit by an outbreak of H5N1 at a turkey farm in February.<o:p></o:p>
Some 159,000 turkeys were killed as a precaution. An official report said it was most likely the virus reached the flock via imported turkey meat from Hungary.<o:p></o:p>
The H5N1 strain first emerged in Asia in 2003, and has caused some 205 deaths in humans, with Indonesia and Vietnam among the worst hit countries, according to World Health Organisation figures.<o:p></o:p>
Scientists fear that H5N1 will eventually mutate into a form that is much more easily transmissible between humans, triggering a global pandemic.<o:p></o:p>
The original source is thought to have been wild migratory birds.<o:p></o:p>
http://www.khaleejtimes.com/Display...theworld_November600.xml&section=theworld&col=
 
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