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Bird flu outbreak in North Wales: H7N2

Re: Bird flu outbreak in North Wales: H7N2

I'm taking bets that the H7N2 in England has M230I. I will give 2-1 odds.

Why only 2 to 1 Dr. Niman? Most of the H7 isolates in GenBank have Isoleucine at position 230 of the HA segment. The Netherlands H7N7 had it, the H7N2 all through the Northeast of the US had it, and the H7N3 had it. It is a very human characteristic as well.

But, that does not mean that this mutation causes high mortality, as the above examples of human cases clearly indicate. It likely does mean, however, that the virus has a bit easier time in infecting humans through alteration of the RBD.
 
Re: Bird flu outbreak in North Wales: H7N2

Why only 2 to 1 Dr. Niman? Most of the H7 isolates in GenBank have Isoleucine at position 230 of the HA segment. The Netherlands H7N7 had it, the H7N2 all through the Northeast of the US had it, and the H7N3 had it. It is a very human characteristic as well.

But, that does not mean that this mutation causes high mortality, as the above examples of human cases clearly indicate. It likely does mean, however, that the virus has a bit easier time in infecting humans through alteration of the RBD.

I generally make bets to win. I agree that the odds of M230I being in the H7N2 in England is high.

As noted, M230I is in all three human serotypes, so clearly it does not cause high mortality in that setting. However, its case fatality rate in Qinghai H5N1 remains at 100%.

Also as noted, M230I appeared in two forms in Qinghai H5N1 in Egypt this season. One version matched the H5N1 infected eagle owl in Northern Germany, while the other matched H7N3 in England.

Birds have wings and migrate to the Nile Delta. Dual infections generate recombinants, and H7 flying around Europe is not a good situation, because Qinghai H5N1 is co-circulting, missing OIE reports not withstanding.
 
Re: Bird flu outbreak in North Wales: H7N2

Bird flu poultry bought at market

Officials trying to trace the source of an outbreak of mild bird flu say 15 chickens found to have the virus were bought at a Cheshire market.

A H7N2 strain was found in the Rhode Island Red birds at the farm near Cerrigydrudion, Conwy.

On Friday, health officials announced nine people had been tested for the virus, with four positive.

Wales's chief vet said Chelford Market near Macclesfield - some 70 miles (112km) away - was one line of inquiry.

The owners of the smallholding at Llanfihangel Glyn Myfyr, Tony Williams and Barbara Cowling, have tested negative for the virus.



The couple called in a vet after the chickens, which they bought at the market about two weeks ago, started to die.

Samples from the birds were sent for testing, and the virus was confirmed on Thursday.

Health officials have stressed that the disease found was the H7N2 strain of bird flu, not the more virulent H5N1.

Chief veterinary officer Christianne Glossop said: "An important part of disease control is finding the source of infection. It has to be a very thorough process with a number of lines of inquiry to follow."

Vigilance

She said anyone who purchased from or supplied to the market on Monday, 7 May and had not already been contacted by animal health officials should contact their local office.

Similarly, any poultry keeper who visited the market on that day and whose birds have subsequently become ill should do so, Dr Glossop said.

"In the meantime, all bird keepers throughout Wales should continue their efforts to maintain high levels of biosecurity and maintain vigilance by continuing to monitor their birds for signs of disease," she continued.

"If you are concerned about the health of your birds you should seek the advice of your veterinary surgeon, if you suspect that your birds have avian influenza you should report it to your local animal health office."

Three of the nine people tested for the virus were taken to hospital, but have now been discharged.

Symptoms

Chief medical officer for Wales Tony Jewell said on Friday: "I would like to reassure the general public that the risk to their health from this outbreak is very low.

"This particular strain is not highly pathogenic and is normally only contracted following close contact with infected birds. In addition the symptoms are generally mild."

Two of the four people who have tested positive were from Wales and the other two were from north-west England.


The five people who tested negative are being treated as having had the virus as a precaution.


The Department for Environment, Food and Rural Affairs (Defra) wants to hear from anyone - who has not already been contacted - who purchased from or supplied to Chelford Market, Cheshire on Monday, 7 May, or any poultry keeper who visited the market on that day whose birds have subsequently become ill.

They are asked to contact their local animal health office or the Defra helpline 08459 335577. Lines are open between 0900 BST - 1700 BST seven days a week.


Story from BBC NEWS:

http://news.bbc.co.uk/go/pr/fr/-/2/hi/uk_news/wales/6694611.stm

Published: 2007/05/26 12:20:28 GMT
 
Fears Of Second Bird Flu Outbreak In Wales

Fears Of Second Bird Flu Outbreak In Wales

<table id="common_center_content" border="0" cellpadding="0" cellspacing="0" width="100%"><tbody><tr><td style="margin: 0pt; padding: 0pt; font-size: 12pt; line-height: 19px;" align="left">Fears Of Second Bird Flu Outbreak In Wales </td> </tr> <tr> <td style="margin: 0pt; padding: 0pt; font-size: 9pt;" align="left">
</td> </tr> <tr> <td class="story_date_label" style="padding-top: 5px;">Last Edited: Saturday, 26 May 2007, 12:00 PM EDT</td> </tr> <tr> <td class="story_date_label">Created: Saturday, 26 May 2007, 11:30 AM EDT</td> </tr> <tr> <td style="padding-top: 5px;"> <!-- Begin Image displayed --> <!-- Begin sidebar displayed --> <!-- End sidebar displayed --> <!-- Text Story Detail --> <!-- Had to use this funcky scriplet to have breaks where ever there is \n bean:write does not differentiate "\n" new line characters. Perhaps use of jstl <c:out value="${bean.property}"/> or just enabling jstl so that we can just write ${bean.property} and jsp takes care of the new lines. --> 05/26/2007 -- Authorities in Wales are investigating reports of a second outbreak of bird flu.
It comes after nine people developed bird flu-like symptoms after coming into contact with birds on a chicken farm in Corwen, north Wales - although only four are said to have contracted the virus.
The new investigation centres on a possible outbreak at a farm in the Llyn Peninsula.
Health officials have stressed that the type of flu found at the first farm is not the potentially deadly H5N1 strain.
The outbreak was on a smallholding in Corwen where 15 chickens died. A further 30 birds were slaughtered.
The Health Protection Agency (HPA) carried out tests on specimens from nine people associated with the incident - seven from Wales and two from north west England.
Of the four positive results, two were from Wales and two were from northwest England.
The National Public Health Service for Wales (NPHS) said virologists had advised that the five people who had not tested positive should also be considered to have had the H7 influenza virus.
It said 23 people have been identified who have been in contact with the chickens on the smallholding in the last seven days or with people who have been ill.
Dr Christianne Glossop, Chief Veterinary Officer for Wales, previously said it was not the most dangerous H5N1 strain but H7N2 low pathogenic avian influenza.
Dr Marion Lyons, Consultant in Communicable Disease Control at the NPHS for Wales, said: "The source of the outbreak of illness is clearly identified as the chickens on the smallholding.
"These have all been culled so the original source has been destroyed.
"Although the number of people involved is very small, we could be dealing with some spread of the H7 flu virus within the household setting. We are treating this possibility very seriously."

http://www.myfoxdetroit.com/myfox/p...n=1&locale=EN-US&layoutCode=TSTY&pageId=3.4.1




</td> </tr> <tr> <td class="story_copyright" style="padding-top: 15px;" align="center"> <!-- Show ONLY if AP story --> </td></tr></tbody></table>
 
Re: Bird flu outbreak in North Wales: H7N2

Commentary

More Bird Flu Surveillance Failures in Western Europe

Recombinomics Commentary
May 26, 2007


The outbreak in Wales involves Rhode Island Red chickens that the farmers bought 2 weeks ago, the British Broadcasting Corporation (BBC) reported today. The birds began dying the day after they arrived at the farm, and by May 17, 10 of 15 had died.

Christianne Glossop, chief veterinary officer for Wales, told the BBC that authorities don't believe the disease is spreading rapidly.

The above comments signal yet another avian influenza surveillance failure in England. Since H7 is a reportable disease and no recent H7N2 outbreaks on farms have been reported, it is likely that the current outbreak is linked to migratory birds that infected the birds several weeks ago.

Like the H7N3 outbreak last year in England, there was no detection of H7 in wild birds prior to the outbreaks on farms. Similarly, the program in England had failed to detect H5N1 in live wild birds. H5N1 was detected in a swan that washed up on the shores of Scotland last year, but no H5N1 infected birds were detected by the surveillance program in England.

Similarly, last year H5N1 was detected throughout western Europe in February and March, and similar sub-strains of the Qinghai H5N1 were found in Germany, Austria, Italy, Slovenia, and the Czech Republic which were virtually identical to the H5N1 in a healthy teal in the Nile Delta in December, 2005. The sequence of the H5N1 in Egypt strongly suggests that H5N1 was present throughout western Europe in the fall of 2005, yet went undetected. No H5N1 was reported in western Europe or Africa until early 2006.

This season, H5N1 in Egypt had M230I, encoded by sequences that match H7N3 in England, or H5N1 in northern Germany. All patients with M230I in Qinghai H5N1 died. M230I is also found in all season flu strains (H3N2, H1N1, and influenza B), which may contribute to the efficient spread of H7N2 in England. Four patients have already tested positive for H7N2, including one without poultry contacts. The status of the vendor that sold the infected birds, as well as contacts, is unclear.

Thus far, the symptoms of the four known positives are mild, and three suspect cases have already been discharged from the hospital. However, H7 can recombine with H5N1 or other H7 isolates. To date there has been one fatality reported with H7N7. The sequence of H7 from the 2003 fatal case was more genetically complex than the H7 from the bird isolates raising the possibility of dual infections in the veterinarian, leading to a more virulent strain.

The levels of H5N1 and H7 in the area remain unclear because of surveillance programs that lack the sensitivity to detect H5N1 in live wild birds. There may be similar problems detecting H7 since neither the H7N3 nor H7N2 outbreaks were signaled by the wild bird surveillance program.


.
 
Re: Bird flu outbreak in North Wales: H7N2

M230I is in all three versions of human influenza (H3N2, H1N1, Influenza B). Human influenza is efficiently transmitted H2H. All H5N1 patients in Egypt with M230I died, including the three members of the Gharbiya cluster (as in efficient transmission).

M230I is also in H3N8, which is efficiently transmitted dog to dog. Dogs are mammals.

The birds migratory tested in Alaska had H3N8 with internal segments with long segments of homolgy with Indonesian (& other) H5N1 (see earlier Dr. Niman posts). If the M230I mutation is also in these birds, they may have more serious potential.

However, is the HA cleavage 8 amino acid mutation staying exclusively with the HP H5N1? .

.
 
Re: Bird flu outbreak in North Wales: H7N2

More people have fallen ill after being in contact with farmworkers or poultry sickened by a strain of bird flu in north Wales, British health authorities said Saturday.

The new suspected cases come a day after four people tested positive for the H7N2 type virus ? a far milder form of bird flu than the deadly H5N1 strain.

The Health Protection Agency, which is an independent body, was not immediately able to say how many more people were showing signs of illness, but all had direct contact with sick poultry or farmworkers confirmed to have contracted H7N2, said spokesman Chris Lines.

The H7 subtype of bird flu is believed to be less virulent than H5 but has sickened humans in the past, notably in the Netherlands in 2003, when one person died following an H7 outbreak.

The mortality rate from H7 viruses is far lower than for H5N1, which experts say causes death in around half of human cases.



The illnesses were reported earlier in the week after a batch of chickens died at a small farm in Wales.

Veterinary officials confirmed Thursday that the birds had died of H7N2, and the Health Protection Agency confirmed late Friday that four people tested positive for H7N2.

The remaining chickens were slaughtered, and Welsh officials said Saturday that birds from a second farm were being tested for the virus.





http://www.iht.com/articles/ap/2007/05/26/europe/EU-GEN-Britain-Bird-Flu.php
 
Re: Bird flu outbreak in North Wales: H7N2

More people showing signs of illness from mild strain of bird flu, British authorities say
The Associated Press Friday, May 25, 2007

LONDON: Four more people have fallen ill after being in contact with farmworkers or poultry affected by a strain of bird flu in north Wales, British health authorities said Saturday.
The new suspected cases come a day after seven people tested positive for the H7N2-type virus — a far milder form of bird flu than the deadly H5N1 strain.
The Health Protection Agency, which is an independent body, said all the new cases had symptoms which included conjunctivitis and had direct contact with sick poultry or farmworkers confirmed to have contracted H7N2.
The H7 subtype of bird flu is believed to be less virulent than H5 but has sickened humans in the past, notably in the Netherlands in 2003, when one person died following a H7 outbreak.
The mortality rate from H7 viruses is far lower than for H5N1, which experts say causes death in around half of human cases.
The illnesses were reported earlier in the week after a batch of chickens died at a small farm in Wales.
Veterinary officials confirmed Thursday that the birds had died of H7N2, and the Health Protection Agency confirmed late Friday that four people tested positive for H7N2.
The remaining chickens were slaughtered, and Welsh officials said Saturday that birds from a second farm were being tested for the virus.

http://www.iht.com/bin/print.php?id=5874974
 
Re: Bird flu outbreak in North Wales: H7N2

More tests for bird flu in UK

New 7:44AM Sunday May 27, 2007


Bird flu


Vets investigating an outbreak of a strain of bird flu in Wales have ordered tests on birds at a second farm, officials said today.
Authorities confirmed an outbreak of bird flu on Thursday among chickens at a farm in Denbighshire, North Wales.
But it was the low pathogenic H7N2 strain of bird flu, not the H5N1 strain, which is potentially deadly to humans and has caused scares elsewhere in the past.
Officials say two people who visited the farm or had been in contact with the infected birds had tested positive for H7N2. They said it was very rare for humans to become infected with bird flu and the risk to the general public was low.
Christianne Glossop, Wales' chief veterinarian, said on Saturday she had ordered samples to be taken from birds at a second farm, this time on the Llyn Peninsula in Wales.
She said she had ordered the tests because of a link between the farm and a market in Chelford, western England, where the chickens at the first farm had been bought.

"There is a police presence currently at the farm, to ensure no unnecessary access to the premises," Glossop said in a statement.
"A decision on any further action required regarding birds on the farm will be taken on the basis of the test results."

Britain has been on the watch for bird disease after Europe's biggest turkey producer Bernard Matthews was forced to destroy 160,000 turkeys because of an outbreak of the H5N1 strain of bird flu in England earlier this year.
The World Health Organisation says 186 people have died of bird flu since the H5N1 virus resurfaced in Southeast Asia in 2003. The virus has since spread throughout much of Asia, parts of Europe, the Middle East and Africa.
The presence of an H7 virus in poultry is treated seriously by animal health officials because scientists believe that, when allowed to circulate in poultry populations, a low pathogenic virus can mutate into the highly pathogenic form.

- REUTERS

http://www.nzherald.co.nz/section/2/story.cfm?c_id=2&objectid=10442068
 
Re: Bird flu outbreak in North Wales: H7N2

Code:
Bird flu

China confirms human death from bird flu
Egyptian girl has bird flu, 27th human case

Why are these two articles from March referenced in this article? Thank you.
 
Re: Bird flu outbreak in North Wales: H7N2

gjs47, that is how the article was presented on the page. Those two articles should not have been included. They are old, as they usually are and have nothing to do with the story we copy.
 
Re: Bird flu outbreak in North Wales: H7N2

Bird flu testing on 2nd farm
-------------------------------
Officials investigating an outbreak of mild bird flu are testing
birds on a 2nd farm in north Wales. A total of 9 people were tested
after the H7N2 strain was found in chickens in the 1st case at a
smallholding in Conwy, with 4 people testing positive. The poultry
had been bought from the Chelford Market near Macclesfield.

The 2nd possible case is about 35 miles (56 km) away on the Llyn
Peninsula, Gwynedd, with birds being tested because of links to the
market.
[For Gwynedd, about 30 miles south/south-east to Conwy, see
map at:
<http://www.multimap.com/map/browse.cgi?lat=52.9061&lon=-4.1035&scale=1000000&icon=x>.
- Mod. AS].

Chief veterinary officer Dr. Christianne Glossop said there was a
police presence at the Gwynedd farm to ensure no "unnecessary access"
to the premises.
The farm is understood to be on the outskirts of
Efailnewydd, near Pwllheli. She said: "We are testing birds at the
farm because of its link with Chelford Market on 7 May 2007. "A
decision on any further action required regarding birds on the farm
will be taken on the basis of the test results."

Health officials have stressed that the disease found at the farm in
Conwy was the H7N2 strain of bird flu, not the more virulent H5N1.
The owners of the Conwy smallholding at Llanfihangel Glyn Myfyr, near
Cerrigydrudion, have tested negative for the virus. The couple called
in a vet after the Rhode Island Red birds, which they bought at the
market about 2 weeks ago, had started to die. Samples from the birds
were sent for testing, and the virus was confirmed on Thursday [24 May 2007].

Earlier on Saturday [26 May 2007], Dr. Glossop confirmed the birds
had been bought at the market, which is some 70 miles (112 km) away
from the Conwy farm, and said it was being regarded as one line of
inquiry. [see map of Chelford at:
<http://www.multimap.com/map/browse.cgi?lat=53.266&lon=2.2738&scale=1000000&icon=x%3E>
- Mod. AS].

She said: "An important part of disease control is finding the source
of infection. "It has to be a very thorough process with a number of
lines of inquiry to follow." Announcing the latest tests of birds on
the Llyn Peninsula, she reiterated her appeal for anyone who
purchased from or supplied to the market on Mon 7 May, and had not
already been contacted by animal health officials, to contact their
local office. Similarly, any poultry keeper who visited the market on
that day and whose birds have subsequently become ill should do so,
Dr. Glossop said.

"In the meantime, all bird keepers throughout Wales should continue
their efforts to maintain high levels of biosecurity and maintain
vigilance by continuing to monitor their birds for signs of disease,"
she continued. "If you are concerned about the health of your birds
you should seek the advice of your veterinary surgeon, if you suspect
that your birds have avian influenza you should report it to your
local animal health office."

Of the 9 people tested for the virus, 3 were taken to hospital, but
have now been discharged.

Chief medical officer for Wales Tony Jewell said on Friday [25 May
2007]: "I would like to reassure the general public that the risk to
their health from this outbreak is very low. This particular strain
is not highly pathogenic and is normally only contracted following
close contact with infected birds. In addition the symptoms are
generally mild."

Of the 4 people who have tested positive, 2 were from Wales and the
other 2 were from north-west England. The 5 people who tested
negative are being treated as having had the virus as a precaution.

The Department for Environment, Food and Rural Affairs (Defra) wants
to hear from anyone -- who has not already been contacted -- who
purchased from or supplied to Chelford Market, Cheshire on Mon 7 May,
or any poultry keeper who visited the market on that day whose birds
have subsequently become ill. They are asked to contact their local
animal health office or the Defra helpline 08459 335577. Lines are
open between 0900 BST - 1700 BST 7 days a week.

--
Communicated by:
Dr. Keith Marshall
<kcm@cix.co.uk>

******
[2]
Date: 26 May 2007
Source: Welsh Assembly Government Press Release
<http://new.wales.gov.uk/news/presreleasearchive/ai-lleyn-update26may/?lang=en>


--
Communicated by:
John Morgan
<davidjohnmorgan@gmail.com>

[The 1st, confirmed H7N2 focus, and the 2nd, suspected one, have both
been recorded in Northern Wales. The market which is regarded as
their common infection origin is in Cheshire, demonstrating the
potential of wide-scale spread of diseases through animal markets.
And, it is reminiscent of the foot and mouth disease (FMD) virus
spread through sheep traded in UK markets in February 2001.

From a subscriber in the UK we have received the following comment:
"The infected birds which died were bought at Chelford Market from a
private dealer and there is no traceable paperwork. I find it quite
incredible that after everything that has happened with regard avian
notifiable diseases in the past few years, auctioneers allow private
sales out of the back of a van to go on at their premises on a sale
day without any formal identification or inspection".
Seems deserving a thought. - Mod AS].:tiphat: http://www.promedmail.org/pls/prome..._BACK_PAGE,F2400_P1001_PUB_MAIL_ID:1000,37575
 
Re: Bird flu outbreak in North Wales: H7N2

11 ill as bird flu tests continue

The outbreak was confirmed at the Conwy smallholding on Thursday
Officials investigating two possible cases of bird flu in north Wales have traced 26 people who may have been in contact with the disease.
Eleven of these people have shown flu-like symptoms, but none has been seriously ill.

Officials said there was not a "significant risk" to public health.

One mild form of bird flu has been confirmed at a smallholding in Conwy, and tests should reveal if there is a second case on a Llyn Peninsula farm.

The National Public Health Service for Wales defined possible contacts of bird flu as people who had been in contact with affected premises, or have either handled or come very close to known infected poultry.

Cases of spread to people remain very unusual and are usually associated with very close contact with birds

Marion Lyons, National Public Health Service for Wales

It also included those who had had close contact with another person who has or is suspected as having bird flu.

Four people - two from Wales and two from north-west England - have been found to have contracted bird flu following the outbreak at Corwen.

A further four are being treated as having had the disease.

The latest figures come as officials examine two properties.

The confirmed case involved a smallholding at Llanfihangel Glyn Myfyr, near Cerrigydrudion, Conwy.

Police at scene

Owners Tony Williams and Barbara Cowling, who have tested negative for the virus, called in a vet after their Rhode Island Red chickens began to die.

They bought the chickens at Chelford Market at Macclesfield, Cheshire, some 70 miles (112 km) away, on 7 May.

A total of 30 chickens from the smallholding have now been slaughtered after 15 birds died. Officials have stressed that the disease found at the Conwy farm was the H7N2 strain of bird flu, not the more virulent H5N1.

The second possible case emerged on Saturday about 35 miles (56 km) away, at a farm understood to be on the outskirts of Efailnewydd, near Pwllheli. It has also been linked to the market.

Police are at the scene but Welsh Assembly Government officials said the farm would not be closed off unless test results found the presence of avian flu.

Marion Lyons, of the National Public Health Service for Wales, said: "We do not believe there is a significant risk to public health in Wales.

"Bird flu is still primarily a disease of birds. Cases of spread to people remain very unusual and are usually associated with very close contact with birds.

"We are contacting every individual who has been in close contact with the people who are cases so people who are not contacted by us should not worry.

"People we have identified as contacts are being offered medication to reduce the severity of any impact from the infection. We are continuing to investigate and identify potential contacts today."

A helpline has been set up to offer information about bird flu. The number is 0845 600 3678, and it is open from 0700 - 2000 BST daily.


The Department for Environment, Food and Rural Affairs (Defra) wants to hear from anyone - who has not already been contacted - who purchased from or supplied to Chelford Market, Cheshire, on Monday, 7 May, or any poultry keeper who visited the market on that day whose birds have subsequently become ill.
They are asked to contact their local animal health office or the Defra helpline 08459 335577. Lines are open between 0900 - 1700 BST seven days a week.






http://news.bbc.co.uk/1/hi/wales/6696035.stm
 
Re: Bird flu outbreak in North Wales: H7N2

The media keeps posting nonsense on H2H. H7 is efficiently transmitted H2H. In 2003, over 1000 people were infected, and the vast majority were infected by a person, not a bird.
 
Re: Bird flu outbreak in North Wales: H7N2

http://www.recombinomics.com/News/01060503/Efficient_H7N7.html

Efficient Human to Human Transmission of H7N7 Bird Flu

[FONT=Arial,Helvetica]Recombinomics Commentary[/FONT]
January 6, 2005

>>As at least 50 percent of the people exposed to infected poultry had H7 antibodies detectable with the modified assay, it was estimated that avian influenza A/H7N7 virus infection occurred in at least 1000, and perhaps as many as 2000 people. The seroprevalence of H7 antibodies in people without contact with infected poultry, but with close household contact to an infected poultry worker, was 59 percent. This suggests that the population at risk for avian influenza was not limited to those with direct contact to infected poultry, and that person-to-person transmission may have occurred on a large scale.<<...........

 
Re: Bird flu outbreak in North Wales: H7N2

Bird flu scare at second farm <TABLE cellSpacing=0 cellPadding=0 width="100%" border=0><TBODY></TBODY></TABLE><TABLE class=headerTable cellSpacing=0 cellPadding=0 width=* border=0><TBODY><TR><TD>May 27 2007

</TD></TR><TR><TD>
</TD></TR><TR><TD colSpan=2>Matt Withers, Wales on Sunday
</TD></TR></TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=0 width=400 border=0><TBODY><TR><TD colSpan=3> </TD></TR><TR><TD colSpan=3>
CHICKENS at a second farm were last night being tested for bird flu following the outbreak in North Wales.
Government inspectors took samples from poultry at a farm on the Llyn Peninsula.
The move came after four people tested positive for the disease after it was discovered on a farm in Corwen, Denbighshire.
Officials confirmed the chickens at the centre of the outbreak were bought at Chelford Market, in Cheshire.
Police were last night at the second farm but Welsh Assembly Government officials said the farm had not been locked down.​

<!-- OAS AD 'x60' end -->

<SCRIPT language=JavaScript type=text/javascript><!-- var MPUBlockLength = 718; //--></SCRIPT>
A spokesman said the farm would not be closed off unless test results found the presence of bird flu.

He refused to name the farm or reveal any details regarding its size.

In addition to the four people found to have contracted bird flu following the outbreak at Corwen, a further four are being treated as having had the disease.

A total of 30 chickens from the smallholding have now been slaughtered after 15 birds died.

They were 22-week-old Rhode Island Red chickens bought by the farm two weeks ago.

Four people tested positive on Friday for bird flu, two from Wales and two from north-west England. But it was not the most dangerous H5N1 strain, but the less dangerous H7N2.

A statement released by the Welsh Assembly Government last night said: "As part of the ongoing investigation into the source of the H7N2 low pathogenic avian influenza outbreak in North Wales, the chief veterinary officer for Wales Dr Christianne Glossop has ordered samples be taken from birds at a farm in the Llyn Peninsula.

"We are testing birds at the farm because of its link with Chelford Market on May 7, 2007.

"There is a police presence currently at the farm, to ensure no unnecessary access to the premises.

"A decision on any further action required regarding birds on the farm will be taken on the basis of the test results."

A one-kilometre restriction zone remains in place around the farm in Corwen to prevent any movement of birds or poultry products in the area. Everyone entering the site has been prescribed the anti-flu drug Tamiflu.

The Llyn Peninsula is around 45 miles from the farm in Corwen.​
</TD></TR></TBODY></TABLE>

http://icwales.icnetwork.co.uk/0100...objectid=19206563&siteid=50082-name_page.html
 
Re: Bird flu outbreak in North Wales: H7N2

Bird Flu found 'near Macc'


27/ 5/2007

THE chickens at the centre of a bird flu outbreak in North Wales were bought at a market in Cheshire, it was confirmed today.

Four people have tested positive for the disease after the virus was found on a farm in Corwen, and five other people are being treated as having had the disease.

Thirty chickens on the smallholding have now been slaughtered after 15 birds died. They were 22-week-old Rhode Island Red chickens bought by the farm two weeks ago.

Dr Christianne Glossop, chief veterinary officer for Wales, said they had all come from Chelford Market, which she said was "one line of inquiry" being followed.

She said: "An important part of disease control is finding the source of infection.

Inquiry

"It has to be a very thorough process with a number of lines of inquiry to follow."

She has previously said that the virus found is not the most dangerous H5N1 strain but H7N2 low pathogenic avian influenza.

Dr Glossop urged anyone who purchased from, or supplied to, Chelford Market on May 7, or any poultry keeper who visited the market that day, to contact their local Animal Health office or to call a Defra helpline if their birds had become ill.

She added: "In the meantime, all bird keepers throughout Wales should continue their efforts to maintain high levels of biosecurity and maintain vigilance by continuing to monitor their birds for signs of disease.

"If you are concerned about the health of your birds you should seek the advice of your veterinary surgeon.

"If you suspect that your birds have avian influenza you should report it to your local Animal Health office."

Restriction

A 1 kilometre restriction zone has been set up around the farm, stopping birds and bird products being moved into or out of the area.

Everyone entering the site has been taking flu drug Tamiflu as a precaution. Two of the people who tested positive for bird flu are from Wales and two are from north-west England.

The Welsh Assembly Government has said the owners of the smallholding have tested negative for the H7N2 strain of the disease, but this does not mean they have not been exposed to the virus.

The Defra helpline number is 08459 335577.

http://www.manchestereveningnews.co.uk/news/s/1007/1007823_bird_flu_found_near_macc.html
 
Re: Bird flu outbreak in North Wales: H7N2

Can someone help me to "build a tree" from ...?

<table><tr bgcolor="#e4ecf6">
<td width="32" align="center"><input type="checkbox" name="accession" value="ABR20545"checked></td>
<td align="right"><a href="http://www.ncbi.nlm.nih.gov/entrez/viewer.fcgi?val=
ABR20545" target="one">ABR20545</a></td>
<td align="right">456</td>
<td align="center">Avian</td>
<td align="center">6 (NA)</td>
<td align="center">H7N2</td>
<td align="center">United Kingdom</td>
<td align="center">2007/05/18</td>

<td align="left" colspan="2">Influenza A virus (A/chicken/Wales/1306/2007(H7N2))</td>
<td align="center"> </td>
<td align="center"> </td>
</tr>
<tr bgcolor="#e4ecf6">
<td width="32" align="center"><input type="checkbox" name="accession" value="ABR20546"checked></td>
<td align="right"><a href="http://www.ncbi.nlm.nih.gov/entrez/viewer.fcgi?val=
ABR20546" target="one">ABR20546</a></td>
<td align="right">559</td>
<td align="center">Avian</td>
<td align="center">4 (HA)</td>
<td align="center">H7N2</td>

<td align="center">United Kingdom</td>
<td align="center">2007/05/18</td>
<td align="left" colspan="2">Influenza A virus (A/chicken/Wales/1306/2007(H7N2))</td>
<td align="center"> </td>
<td align="center"> </td>
</tr></table>
I would like to know, whether it's possible to trace back the source?
 
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