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China develops 1st live bird flu
vaccine |
Chinese scientists have produced the world's 1st live
vaccine against bird flu and Newcastle disease, 2 killer
infections for poultry, the Ministry of Agriculture has
announced.
The recombinant bivalent vaccine, developed
by the Harbin Veterinary Research Institute, will be a great
boost to prevention and control of the 2 epidemics in China as
well as in the world, Chief Veterinary Officer Jia Youling
told a press conference in Beijing on Saturday [24 Dec 2005].
In addition to injection, the vaccine can be administered
orally, nasally or by spraying, said Jia, also chief of the
ministry's Veterinary Bureau. The mass- application techniques
can not only significantly reduce labor costs, but also
increase immunity among fowl, Jia said. The shot will also be
very inexpensive, as its production cost is only 1/5th of that
of the inactivated vaccines available on the market, he said.
While most people are familiar with bird flu,
Newcastle infections are endemic to many countries. The latter
is also a highly-contagious viral disease affecting both
domestic poultry and wild birds, experts said, adding that
chickens are the most susceptible. Chinese scientists at the
Harbin Institute in northeast China's Heilongjiang Province
spent 4 years to develop the powerful antidote [a term usually
applied in relation to toxins, not to infective agents. -
Mod.AS] to both Newcastle and bird flu, according to Jia.
Employing a technique called reverse genetics, the
vaccine uses an attenuated Newcastle vaccine strain, LaSota,
as a vector, according to Bu Zhigao, a chief scientist of the
project.
Mass-production of the new vaccine was
approved on 23 Dec 2005, and by the end of this month
[December 2005], one billion shots will have been produced, he
said.
Source: India infoline, 26 Dec 2005
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Winter Show Report |
Well, we managed to pull it off, and I believe everyone
agrees that it was a great show. What started out as our
typical show ended up with a show double our usual size, due
to the support of the Mountain Pacific Racing Homer Society
hosting their annual racing show with us, and with exhibitors
from Alberta supporting our show due to the cancellation of
the CPFA Classic in Edmonton.
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Greetings,
We
have two great articles in this newsletter provided by Dave Williamson,
our bulletin editor. The first article entitled "Local Show Season Report"
reviews our summer show season and winnings by our club members.
Congratulations to all winners!
Our
second article "Article Flu", is an update to this disease that has
cancelled two Canadian shows, and has the potential to threaten our shows
in the future. Dave provides background and insight into the state of this
disease, which you will find an interesting read. Remember, the more we
know about this disease, the better prepared we can be to protect our
hobby and our birds.
I hope
everyone had an enjoyable holiday season and look forward to seeing you at
our January meeting.
Please
note the meeting date change, due to conflicts with show and vacation
schedules of our directors. The meeting, as noted in our December
bulletin, is changed from Sunday, January 22 to January 8th.
Thanks,
Keith
Biggs
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Local Show Season Report
The local show season began October 8-9 with the Lake
Stevens show sponsored by the Snohomish County Pigeon
Fanciers.
This show is a favourite with Vancouver area fanciers and at
least 10 club members made the trip down to Marysville over the
weekend. Club members did well at this year’s show. Bob Sutherland,
who is a member of both the Snohomish club and the VP & FPA,
took Reserve Champion of the Show with a Shaksharli, Ernie Silveri
took Champion Sporting with an American Roller, Murray McAllister
had best and reserve Modena and Ken Chatwin had reserve Show Type
Homer. George Van Vliet worked as one of the judges and everyone
enjoyed the SCPF’s hospitality. The Vancouver, Wa. show (formerly
the Portland Young Bird Show), was held October 23 at the Red Lion
Inn on the Columbia River.
This is an NPA sanctioned all age
show sponsored by the North West Pigeon Fanciers and features a
number of specialty breed shows. Ken Chatwin and Ernie Silveri
attended the show, Ken took Champion Show Type Homer and Ernie had
best black American Roller.
The Sand-N-Sagebrush show
sponsored by the Columbia Basin Pigeon Club was held October 29-30
in Kennewick, Wa. Ken Chatwin, Ernie Silveri and George Van Vliet
made the long trip down and were well rewarded. George had Champion
Pouter, Ernie again had best black American Show Roller and Ken
cleaned house by sweeping all age and sex classes of Show Type
Homers, ending up with Champion Sporting.
As we all know the
CPFA Canadian Classic show to have been held at FarmFair
International in Edmonton on November 4-5 fell victim to the avian
influenza scare and was cancelled. A number of club members will now
be flying somewhere in West Jet’s world next year.
The VP
& FPA show was expanded to November 18- 20 to accommodate
fanciers from Alberta and the Prairies who would have attended the
Edmonton show. A complete report of our Winter Show will be provided
later. During the show an avian influenza outbreak in a local
poultry flock caused the U.S. to close its border to southbound
poultry, stranding 60 birds exhibited by U.S. fanciers. Ernie
Silveri and Ken Chatwin arranged to house the birds temporarily in
their lofts until a special exemption was granted, allowing Ken to
take the birds down on November 30.
The Puyallup show
sponsored by the Puget Sound Pigeon Club was held November 26-27 but
with the U.S. border still closed the 8-9 club members who attended
were spectators only. The show, however, draws fanciers from a wide
area and it was a good opportunity to renew acquaintances and meet
people in the hobby.
Despite the disappointment of the
Edmonton show cancellation this was an enjoyable show season, so
much so in fact that there was some talk of club members attending
the NPA Grand National in San Bernardino on Jan 18-19,
2006. |
| NEXT MEETING |
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January 8, 2005 |
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2:00 PM - 4:00 PM |
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Murray McAllister
23313 - 34A Ave
Langley, BC |
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Please join us at our January
meeting! |
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More
Events | |
| ABOUT US |
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The Vancouver Poultry & Fancy Pigeon Association
is dedicated to the promotion and facilitation of the
breeding and exhibition of fancy pigeons in the Pacific
Northwest. | | |
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Avian Flu
On October 25, 2005, Health Ministers from around the
world were quarantined together at a “bird summit” where their
potentially lethal policy ideas threatened to mutate out of control.
The alleged danger is that the new strain of avian flu virus, H5N1,
might mutate into a form that can be spread between humans, and then
might run out of control. That’s two
mights.
As it stands, while millions of birds are thought to have
been infected world-wide only about 125 people have become infected,
about half of whom have died. The fact is human infection can only
come from getting down and dirty with a bird, via contact with
excrement on feathers. Those who have caught the disease so far have
been chicken pluckers, cock-fight organizers, children with pet
ducks and others who are around when the feathers fly. Even the
World Health Organization has stated that the “species barrier” to
acquisition of the virus by humans is “substantial”. That, however,
is not the impression being given. You just have to mention the
words “avian flu” and the media gets hysterical, bureaucrats start
building empires and policy makers get stupid. - from a recent
National Post editorial page
The recent “Aussie incident”, in which Australian authorities
discovered avian flu antibodies in a shipment of pigeons from
Toronto and immediately issued an import ban on birds from Canada,
is a good example of how governments can overreact. After meetings
between both countries’ health experts it was announced that none of
the pigeons were infected with or carrying the avian flu virus and
were therefore neither clinically ill or capable of making other
birds or humans ill. The import ban was subsequently lifted.
Unfortunately the damage had already been done. The hype around this
incident resulted in policies which closed the pigeon and poultry
sections in two of Canada’s largest annual agricultural exhibitions,
FarmFair International in Edmonton and The Royal Winter Fair in
Toronto. As pigeon fanciers our only defence against this kind of
speculation that could adversely effect our hobby, is an
understanding of the real facts. What follows is basic information
on influenza and specifics on the H5N1 strain of avian influenza.
Viruses and Influenza
A virus particle is a
microscopic packet that contains genetic material wrapped in a layer
of protein. Unlike bacteria, viruses cannot reproduce on their own -
they have to invade host cells. This process destroys cells and
makes the host animal (or person) sick. Viruses usually enter the
host animal through their mouth, mucous membranes or breaks in the
skin. Then they infect specific cells. The influenza virus attacks
cells in the respiratory system causing fevers, sore throat and
congestion and sometimes muscle cells causing aches. As the virus
reproduces, it destroys the host cells releasing copies of the virus
to attack other cells.
There are three types of influenza
virus - types A, B and C. Multiple subtypes exist within those types
and multiple strains within each subtype. Influenza A subtypes are
named for their proteins called hemagglutinin (HA) and neuraminidase
(NA), that's why they have names like:
- H1N1 : The
“Spanish” flu that killed 50 million people in 1918-1919. - H2N2 :
The “Asian” flu pandemic in 1957-1958 - H3N2 : The “Hong Kong” flu
pandemic in 1968
Many virus strains, including influenza,
are unstable and can mutate through small changes that occur during
reproduction (antigenic drift) or major changes that occur when two
different types of influenza meet and swap DNA creating a whole new
strain (antigenic shift). These new strains of viruses can be
especially dangerous. Scientists believe the two most recent flu
pandemics occurred after human strains of influenza acquired genes
from an avian flu virus.
Avian Influenza H5N1
When scientists talk about avian flu, they are referring
to varieties that exist mostly or entirely in birds - not people.
Most of the time birds can’t transmit the flu directly to people.
They first infect other animals, often pigs, that can contact both
human and avian flu strains. When the two strains come in contact
with each other they create a new strain that can infect humans.
In 1997 however, health officials in Hong Kong reported a
virulent strain of avian flu that appeared to move directly from
birds to people rather than through a second species. The virus
caused typical flu symptoms and sometimes pneumonia and acute
respiratory distress. Tests confirmed this strain, influenza A H5N1,
was completely new to humans. The Hong Kong government acted quickly
and in three days destroyed 1.5 million birds, the country’s entire
poultry population. Even so, 18 people were infected by the virus
and 6 of them died.
The H5N1 influenza strain then seemed to
lay dormant until 2003 when both infected birds and people were
reported in Vietnam and Thailand and in 2004 in Cambodia and
Indonesia. Although over 100 million birds have been killed in these
countries, both as a result of the disease or in an effort to
prevent it spreading, outbreaks continue to occur. In October 2005,
the disease appeared in poultry flocks in Eastern Europe, likely
spread by migrating birds.
Right now, avian flu H5N1 is most
threatening to birds, especially in Asia. The biggest threat to
human health and potential for the spread of the disease is also in
Asia , where many rural families have at least a few chickens that
typically roam free, including through their owners’ habitations.
Health officials from Canada, the U. S. and Europe are currently
assisting Asian countries in managing the avian flu. They are also
advising their own countries’ governments on policies and plans to
respond at home to what some are saying is the inevitable global flu
pandemic. We will have to wait and see how those policies and plans
effect our hobby. In the meantime enjoy what is left of this year’s
show season, it may be a while before we have another
one. |
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