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MR. JIM ROGERS: Good afternoon, everybody. My
name is Jim Rogers. I work with the Animal and
Plant Health Inspection Service Legislative and
Public Affairs Office. Today we're having a sort
of Avian Influenza 101 to sort of lay out what
the U.S. Department of Agriculture does and
actually has been doing for quite some time.
We have five speakers today. Dr. Ron DeHaven
the administrator with the Animal and Plant
Health Inspection Service will start off;
followed by Carlton Courter the Agriculture
Commissioner for the Commonwealth of Virginia;
Alice Johnson the president of the National
Turkey Federation; Richard Kearney the Wildlife
Program Coordinator at the U.S. Geological
Survey, Department of Interior; and Dr. Richard
Raymond the Under Secretary for Food Safety here
at USDA.
After these speakers have concluded we're
going to open the floor to questions. We're
going to start actually here locally for those
of you folks on the phone we will get to you
after we have exhausted the questions here in
the room. For those listening on the phone, to
get in the queue for questions please press #1.
The question and answer format will be pretty
much what it is usually here at USDA. We're
going to ask that you stand up, state your name
and your affiliation, and then go ahead and ask
your question. We're going to limit it to one
question per person at this time. We may get
back to you further on in the briefing, but if
you could limit yourself to one initial question
we'll go from there.
At this point I'd like to ask Dr. DeHaven to
come on up and tell you about avian influenza.
DR. RON DEHAVEN: Thank you, Jim. And I want
to thank all of you for joining us today
particularly on short notice. And indeed we want
to start with kind of an avian influenza 101.
But even before we get started I'd like to
thank our colleagues who've joined us,
particularly Commissioner Courter, the
Commissioner of Agriculture from the state of
Virginia; Alice Johnson representing the poultry
industry at large but she comes specifically
from the National Turkey Federation; as well as
our colleagues and friends from the Department
of the Interior. So again than you all for being
with us today.
So avian influenza 101. These viruses are
actually in the same family of viruses that
cause flu in people every year. So every year
there's a flu season in birds just as we have a
flu season for humans. And as you would expect
some forms of the flu are more severe than
others.
These avian influenza viruses can infect
chickens, turkeys, pheasants, quail, ducks,
geese and guinea fowl as well as other varieties
of birds including migratory waterfowl.
Transmission of the virus from one bird to
another occurs through direct contact, typically
through contact with respiratory secretions or
infected birds will actually set the virus in
their feces as well.
Worldwide there are many strains of avian
influenza virus, which again can cause varying
degrees of illness in poultry. These viruses are
characterized by two different proteins on the
surface of the virus. One is called
hemagglutinin or H for short, and the other one
is a neuraminidase protein or N for short. There
are 16 different H proteins, 9 different N
proteins, for a possible combination of 144
different characterizations of this virus.
Viruses currently circulating, as you know in
several Asian and European countries and this
particular virus is an H5N1 type virus. It's
worth pointing out all viruses of the same type,
for example an H5N2 wouldn't necessarily be
identical. One of the unique characteristics of
influenza viruses is that they are constantly
changing or mutating. That's why you need a
different flu shot every year. The viruses
change or mutate from year to year, and
therefore a different type of vaccination needs
to be developed for whatever form of the virus
is circulating in any given year.
With regard to birds, avian influenza viruses
are further divided into two groups-- low
pathogenic avian influenza or low path AI, and
highly pathogenic or high path AI viruses.
Pathogeneticity refers to the ability of the
virus to produce disease, obviously with the
highly pathogenic viruses producing far more
severe clinical signs and higher mortality in
birds than you'd expect with the low pathogenic
avian influenza virus.
Low path AI has been identified in the United
States and indeed around the world since the
early 1900s, and is a relatively common finding
just as human flu viruses are a common finding
in people.
Low path avian influenza viruses cause some
of the infected birds to become ill and is even
fatal to a small percentage of those birds just
as some people die every year from the current
flue strain that's circulating. However, most
avian influenza viruses found in birds do not
pose any significant health risk to humans.
Highly pathogenic avian influenza has been
found in the United States three times-- 1924,
1983 and 2004. The 1983 outbreak was the
largest, ultimately resulting in the destruction
of 17 million birds in Pennsylvania and Virginia
before that virus was finally contained and
eradicated. The 2004 outbreak in contrast was
quickly found and eradicated. This outbreak was
confined to one flock of 6,600 birds. There was
no significant human health implications or
reports of human health in connection with any
of those outbreaks.
In domestic poultry the greatest concern has
been infections with H5 or H7 strains, which can
either be highly pathogenic or low pathogenic
avian influenza. The highly pathogenic H5 and H7
viruses are always of a concern because of their
ability to mutate to the highly pathogenic
version.
Again, speaking strictly with regard to
birds, only H5 and H7 subtypes of the AI viruses
have ever been shown to be highly pathogenic.
The two outbreaks in the U.S. that I just
mentioned both happened to be H5N2 viruses. The
virus that is currently circulating in Asia is
an H5N1 virus, and it is also one of those
highly pathogenic viruses for birds.
This particular H5N1 virus is also unique in
that it has been transmitted from birds to
humans, most of whom had reported extensive
direct contact with infected birds. I think it's
important to emphasize, however, that there is
no evidence at this time that that H5N1 virus
that's currently circulating in Asia is in the
U.S., either in birds or humans. Again, no
evidence that it's in birds or humans in the
United States at this time.
We do a lot with regard to prevention to keep
this virus and others out of the United States.
As a primary safeguard, APHIS maintains trade
restrictions on the importation of poultry and
poultry products from all affected countries.
Customs and Border Protection colleagues have
been alerted and are vigilantly on the lookout
for any poultry or poultry products that might
be smuggled into the U.S. from any of the
affected countries.
Additionally, USDA quarantines and tests live
birds to make sure that pet birds and other fowl
from countries not known to be infected don't
inadvertently introduce disease into the United
States.
We also have an ongoing surveillance program.
The idea of surveillance is simply that if avian
influenza is here, we want to find it very
quickly and then quickly respond to eliminate
it. Early detection and rapid response is the
key to minimize the impact on our poultry
production as well as minimize any impact with
regard to trade restrictions.
We have extensive surveillance programs in
place in the United States for avian influenza
in poultry. This surveillance focuses on our
commercial poultry producers where we conduct
over one million tests a year for avian
influenza. Additionally, our commercial poultry
industry is extremely vigilant in applying good
biosecurity practices. Biosecurity simply means
applying some very practical, common-sense
measures to keep from bringing unwanted germs on
to the farm or into the poultry houses.
I'd like to pause at this point to talk about
some of the specific surveillance and
biosecurity activities that are happening in the
states. In order to do so I'm going to turn the
microphone over to Commissioner Courter, again
the Commissioner of Agriculture from the state
of Virginia. Commissioner Courter?
COM. COURTER: Thank you, Dr. DeHaven. Thank
you for allowing us to be with you this
afternoon. I'm simply here as a state
representative to highlight the partnership of
the states, the federal government and industry
as well. And you'll have an industry
spokesperson in just a moment.
In Virginia, at the state level, we do strict
surveillance on our flocks of turkeys and
chickens. In fact we do pre-slaughter and
post-slaughter testing on every single flock
that goes to slaughter. We practiced strict
biosecurity on our farms in the past. We
tightened that security even further following
the '02 outbreak in Virginia of a low path
strain of avian influenza.
We limit access to the farms at the farm
gates. We strictly limit access into the houses
of the birds. These houses are tight,
well-contained, there's no ability for wild
birds to enter or exist these houses, and
otherwise cross-contaminate the domestic birds.
Again I mentioned the federal, state and
industry partnership. It worked extremely well
in our break in '02. It resulted in one of the
quickest put-downs of a disease in recent
history. We as a state could not have done it
without the help of USDA and the cooperation of
industry in terms of eradicating that disease.
It worked well in '02. We feel that it will
continue to work well in the future to provide
biosecurity and protect our flocks across the
Commonwealth of Virginia and across the nation.
Thank you.
DR. DEHAVEN: Thank you, Commissioner. And now
I want to again introduce Alice Johnson, here
representing the poultry industry and
specifically she comes from the National Turkey
Federation. Alice?
MS. ALICE JOHNSON: Thank you, Dr. DeHaven. I
appreciate the opportunity to be here to talk a
little bit from the poultry industry. As you've
heard, prevention, detection and containment are
all a part of disease preparedness, which is
nothing new to the poultry industry. It's a way
of life for the industry. With regard to
detection, Dr. DeHaven mentioned surveillance
programs. The industry has been in surveillance
programs over the past few years and will
continue to do so. The programs are developed
with the methodology, the testing protocols as
well as the labs and the reporting all done hand
in hand with local, state and federal agencies
working with the industry to get the best
possible results and to be sure that awareness
is made on the issues and to look at the
detection of the disease.
With regard to the biosecurity, as Dr.
DeHaven mentioned it's a key component of
raising any animal. In the poultry industry
isolation, traffic control is key, along with
disinfectant. And some of you may have been on
some media tours within the poultry industry in
which you were allowed to get so close to the
house and then because of the biosecurity
measures currently in place they said, I'm
sorry, this is as far as we can let you go
because we are concerned of the bird health.
So I think the guidelines APHIS has put
together have been done in conjunction with
several different groups that include industry
as well as state representatives and are an
excellent example of biosecurity measures within
the industry.
And Dr. DeHaven, I appreciate the opportunity
to be here. Thank you.
DR. DEHAVEN: Alice, thank you. We again
appreciate both the commissioner and Alice being
here with us today.
APHIS has conducted a major outreach campaign
called Biosecurity For the Birds. We have a
plethora of materials that we've provided to the
poultry industry, this being one example of a
small brochure that in fact has half a dozen
very common-sense, easy-to-apply measures that
poultry producers or for that matter those that
might have backyard flocks can apply to reduce
the possibility of bringing in any disease, not
just avian influenza, on to their farm or into
their back yard.
USDA has also been working with the State
Agricultural Departments and industry
representatives to increase surveillance at live
bird markets in the northeastern United States.
This cooperative program is designed to prevent,
diagnose and eliminate if found any of the H5 or
H7 subtypes of virus in those markets.
When we have unexpected poultry or for that
matter livestock disease situations on a farm
what we will typically conduct a foreign animal
disease investigation. What that means is we
have a cadre of specially trained veterinarians
who as a standard will be on that farm at that
live bird market or wherever we have an unusual
report within four hours to conduct an initial
examination and submit samples for testing.
As you will hear later, we're also doing
surveillance elsewhere specifically in the wild
bird population. And more extensive surveys are
planned in the coming year. All of this is
because wild birds are thought to be a natural
reservoir or perhaps the natural reservoir for
avian influenza viruses and one way that that
H5N1 virus could potentially find its way to the
U.S. is the migratory birds.
As you've heard already, APHIS is not new to
disease incursions and successful eradication
efforts. In conjunction with our state
colleagues we have state level response teams
ready to go. These teams will typically be on
site within 24 hours of a presumptive diagnosis
of avian influenza or any other foreign animal
disease for that matter. Destruction of the
affected flocks would be our primary concern and
course of action, as we also immediately would
impose typically state level quarantines and
movement restrictions.
For highly pathogenic avian influenza as well
as for low path H5 and H7 subtypes we work with
the states to quarantine affected premises,
clean and disinfect those premises after the
birds have been destroyed and removed. We
conduct epidemiological investigations to find
out where that infection might have come from or
where it might have spread to. And then we
conduct surveillance testing in that vicinity to
ensure that it hasn't spread.
We also maintain a bank of avian influenza
vaccines in the eventuality that vaccine would
be a preferred course of action in any of those
outbreak situations. Indeed, we have done some
testing on the vaccine that we have in that
bank, and we do indeed have a vaccine that is
effective against that H5N1 virus that's
currently circulating in parts of Asia.
Again the USDA is working very closely with
its federal, state, tribal partners along with
the poultry industry to ensure that emergency
response readiness is there if highly pathogenic
avian influenza should reoccur in the United
States.
As you know, there's a lot of effort underway
in the U.S. and all over the world to prepare
for potential pandemic avian influenza
situation, and appropriately so. Our U.S.
Department of Health and Human Services
colleagues have the lead when it comes to public
health component preparations for such a
pandemic, and the U.S. Secretary of Health and
Human Services Mike Levitt is in fact very much
engaged in directing that effort.
In the meantime, the Department of
Agriculture is working closely with the
international community to assist highly
pathogenic avian influenza-affected countries,
those countries that have this H5N1 virus, and
helping them with regard to disease prevention,
management and eradication activities.
We need to prepare for the possibility of a
pandemic in the world and indeed in this
country, and as we should be doing we are. But
at the same time we think it's important to
address that infection at its source; that is,
at the affected birds in countries that have
that virus, and help them with the eradication
efforts. Indeed, that provides the best
opportunity by reducing or eliminating that
virus growth to prevent such a pandemic from
happening in the first place.
Well at this point I'd like to turn the
microphone over to Rick Kearney who will bring a
perspective from the Department of Interior on
some of the activities that are ongoing there.
Rick? Thank you.
MR. RICK KEARNEY: Thank you very much. On
behalf of Secretary Gail Norton I want to
express my appreciation for the invitation to
join you here today. I think this epitomizes the
close coordination that has taken place between
the Department of the Interior and the
Department of Agriculture on this important
issue.
The Department of the Interior is responsible
for managing wildlife including migratory birds
under various laws such as the Migratory Bird
Treaty Act, and for ensuring public health on
the more than 500 million acres of land that it
manages across the country. To carry out these
responsibilities the Department and its partners
are investigating high path AI in migratory
birds and making plans to protect the health of
its employees and the 450 million people that
visit Department-managed land each year.
There is one point I would like to make clear
up-front. Even though high path AI has caused
mortality in more than 60 species of wild birds
in Asia and in Europe, there are no reported
cases of people becoming infected from migratory
birds. There are three organizations that have
roles in the Department's efforts related to
high path AI.
The first of these is the U.S. Geological
Survey, the scientific arm of the Department.
The Survey has a long history of responding to
wildlife disease emergencies and conducting
wildlife disease investigations. The survey is
supporting international high path AI research
efforts by contributing information and
world-class expertise about migratory birds and
their movement.
The second is the U.S. Fish and Wildlife
Service, the Federal Wildlife Management Agency
within the Department. The Fish and Wildlife
Service administers the National Wildlife Refuge
System, with many of its 545 refuges providing
critical nesting, migration and wintering
habitat for waterfowl and other migratory birds.
The Fish and Wildlife Service also carries
out permitting and enforcement responsibilities
under federal law governing trade in wildlife
species and their products. And it works with
the USDA to regulate the importation of wild
birds for the pet trade, research and other
purposes.
The third element of the Interior is the
National Park Service. With 384 areas of the
National Park System the National Park Service
has a key role in protecting the health of its
visitors. The National Park Service hosts 32
commissioned officers of the U.S. Public Health
Service to meet this important responsibility.
As you know, the H5N1 strain of high path AI
has not been detected in North America. However,
the expanding global spread of H5N1 increases
the likelihood that it will eventually be
detected here. There are a number of pathways
through which the virus could be brought to
North America. Introduction by wild migratory
birds is but one possible pathway. USDA and the
Department of the Interior are working together
to address this.
In conjunction with the state of Alaska, Fish
and Wildlife Service and Geological Survey
biologists have been strategically sampling
migratory birds for H5N1 in the Pacific Flyway
for several months now. These efforts complement
a series of ongoing avian influenza studies
being conducted by the Department of Agriculture
and its university partners in Alaska where
birds that regularly migrate between Asia and
North America are known to congregate.
The U.S. Geological Survey, Fish and Wildlife
Service, and Department of Agriculture already
planning a coordinated and more comprehensive
surveillance and detection program for 2006.
This program is being designed to provide an
early warning should migratory birds be found to
carry the virus.
Again on behalf of Secretary Norton I want to
thank you so much for the invitation to be with
you here. At this point I'd to turn over the
mike to Under Secretary for Food Safety Dr. Dick
Raymond.
DR. RICHARD RAYMOND: Thank you. And on behalf
of Food Safety Inspection Service I want to
thank you all for joining us this afternoon for
this important information regarding avian
influenza and in my case particularly food
safety.
If high path avian influenza were to be
detected in the United States I want to assure
the American public that the chance of that
infected poultry ever entering the food chain
would be extremely low. That's in part because
we have inspection personnel from the USDA's
Food Safety and Inspection Service assigned to
every federally inspected meat, poultry and egg
product plant in America. Poultry products for
public consumption are inspected for signs of
disease both before and after slaughter. The
"inspected for wholesomeness by the U.S.
Department of Agriculture" seal ensures that
this poultry is free from visible signs of
disease.
No human cases of avian influenza have been
confirmed from eating properly prepared poultry.
In addition to proper processing in the plants,
proper handling and cooking of poultry also
provides protection from viruses and bacteria
including the avian influenza.
But I want to reiterate at this point the
proper food safety practices are important every
day. As an agency we remind consumers each day
and every day that there are basic food safety
steps to follow. That's clean, separate, cook
and chill.
By clean we mean always wash your hands and
surfaces that have come in contact with meat and
poultry products before and after handling food.
By separate we mean don't cross-contaminate.
Keep raw meat, poultry, fish and their juices
away from other foods. Cooking a turkey breast
at an adequate temperature does no good if
you've contaminated the lettuce.
So cook the meat and poultry to the proper
temperatures using the food thermometer is the
only sure way to know that you have cooked that
product properly. Appearance will not answer
that question for you.
A high enough temperature will destroy
bacteria and viruses in poultry products. The
USDA specifically recommends cooking ground
turkey and ground chicken to a temperature of
165 degrees F, cook turkey breast to 170 degrees
F, and whole birds, legs, thighs and wings to
185 degrees F.
And then chill. Refrigerate promptly. Always
refrigerate perishable foods within two hours of
taking it out of the refrigerator or having
prepared it by proper cooking. And as a
reminder, refrigerators should be at 40 degrees
F or lower, and freezers should be at zero
degrees F or lower.
You should also use cooked leftovers after
Thanksgiving within four days to be safe.
Consumers should know that if they do have
questions about safe storage, handling or
preparation of meat, poultry, egg products they
can contact us at the USDA meat and poultry
hotline. That's 1-888-MP as in Meat/Poultry --
Hotline. Or 1-888-674-6854. That hotline is
available in English and Spanish Monday through
Friday.
You can also access "Ask Karen", which is our
FSIS virtual representative on the web available
24 hours a day to answer your questions at
USDA.GOV.FSIS.USDA.GOV.
With that, I think we turn it back to Jim or
Dr. DeHaven for question and answers.
MR. ROGERS: At this point we're going to go
ahead and start our question and answer period.
Because as with all of our meetings this is
being recorded for transcription we're going to
ask that you hold your question until the
microphone is brought to you. We have runners on
each side of the room for your convenience.
Please state your name when you're called upon,
and give us your affiliation as well before you
ask your question. We'll start with Bill.
REPORTER: Bill Tomson with Dow Jones. Seeing
as I'm only allowed one question it has two
parts.
DR. DEHAVEN: Folks have learned lessons
through some of our previous press conferences
in this room, huh, Bill?
REPORTER: Absolutely. This may be a question
for Dr. Raymond. Are there any visible signs of
avian influenza being processed? Can you
actually see it? My second part of the question
is because this doesn't yet spread human to
human. Would the humans that would be most
likely susceptible would be able to work on
poultry farms if H5N1 were to enter the country?
R: To answer the first part of your one
question, there is no visible signs on a chicken
or turkey breast that that bird has been
infected with avian influenza. What I meant when
I said we inspect both pre and post slaughter,
pre-slaughter we're just making sure these
chickens and poultry appear to be healthy. Any
animal that does not appear to be healthy is
going to be taken from the food chain before it
ever enters it. The after-slaughter process is,
we do inspect the meat of these birds to make
sure there's no signs of bruising or damage in
other areas. But we also inspect the internal
organs, and that's where we'd be more likely to
see signs of early infectious disease.
DR. DEHAVEN: Because this is an agricultural
briefing and we're specifically talking about
avian influenzas as they would relate to poultry
and birds, we're going to defer your question on
human-to-human transmission to our colleagues in
CDC, and rightfully so. Indeed, there's a lot of
preparation going on within Health and Human
Services and elsewhere in our public health
arena. And those kinds of questions are best
directed to those experts, and we'll stick to
our expertise as it relates to avian influenza
and poultry.
Jim, I think we're ready for the next
question.
MR. ROGERS: Before we get to the next
question I wanted to add for the folks listening
on the phone and for the folks here in the room
we also have with us David Suarez. He's the
research leader for Exotic and Emerging Avian
Viral Diseases with our Agriculture Research
Service here at USDA. And Gary Frazer, the
liaison to the U.S. Geological Survey with U.S.
Fish and Wildlife Department. So they're also
available to answer questions.
Next question? Sally, if you'd hold for the
microphone we'll get that to you?
REPORTER: I'm Sally Schuff with Feedstuffs.
My question is for Dr. DeHaven. Surveillance and
monitoring for the virus in North America, again
a two-part question. Do we have cooperative
agreements with countries Canada and Mexico? And
what kind of surveillance will be conducted in
domestic livestock, domestic poultry, swine
operations that may be vector for the disease.
And is that in place now?
DR. DEHAVEN: With regard to Canada and
Mexico, our North American partners, we have an
ongoing very close relationship and in fact have
an ongoing North American Animal Health
Committee. So we would be in that arena as
opposed to a separate agreement that we might
have where we'd share information with regard to
surveillance on avian influenza.
Indeed I think we saw that in action several
years ago when there was an outbreak of avian
influenza and the southwestern corner of Canada
very close to our border, and the cooperation
there was very good. So I have no doubt that
with the relationship that we already have
established that there's good sharing of
information, and to the extent that if we were
to have an outbreak of avian influenza of any
kind in North America we would use those
existing mechanisms to share information.
In terms of ongoing surveillance, we're
getting surveillance in our domestic population
from a number of sources. We have ongoing
surveillance of course in our commercial poultry
operations. I think because of the heightened
awareness around the world with this particular
virus clearly our poultry industry in the U.S.
is on the watch and very closely and very
vigilantly watching for any kind of sign.
It's the highly pathogenic avian influenza
virus like the H5N1 one that will make
themselves known very quickly, and that it kills
birds and kills large numbers very quickly. So I
think here again we feel comfortable that if
there were an incursion we would find it
quickly.
I mentioned that we've got surveillance in
those live bird markets in the Northeast, an
area where we have historically found incursions
of a low path avian influenza virus. But it is
an H7 virus, so our concern there is that that
particular virus while low path has the
potential to mutate to a high path.
And then we're also capitalizing on exotic
New Castle disease situation we had back in 2002
in the United States. You may recall this
affected several Southwestern states. Ultimately
it resulted in the destruction of a lot of
birds. But if you're testing backyard flocks for
Exotic New Castle disease just as easy to also
use that sample to test for avian influenza.
So we've got ongoing good surveillance in our
backyard flocks, in our live bird markets in the
northeast, as well in our commercial industry.
So I think we feel very good about that.
You did raise an interesting point with
regard to swine. Swine is one of the many
species of animals known to be affected by these
influenza viruses, and it indeed may be an area
where we need to be looking. In fact I met with
some key leaders in the pork industry just
yesterday to talk about what would be
scientifically valid in terms of surveillance
for influenza viruses in swine; how can that be
used to help us in terms of surveillance for
this particular virus as well as mitigating any
reaction or even over-reaction should in fact we
find an influenza virus in swine?
So it's another susceptible species. We
started that dialog with the swine industry
already to look at that.
I think it's important to point out too that
the reason we are having this press conference,
or I should say one of the reasons is, that this
is flu season not just for people but it's also
flu season for poultry. It's not uncommon for us
for two or three or four times a year to find a
low pathogenic avian influenza virus in our
commercial poultry. We've got good surveillance.
We find it quickly. It's quickly contained
working closely with the industry and our state
counterparts.
But with the current situation with that H5N1
virus circulating in Asia, our concern is that
if we have one of our routine regular incursions
of a low path avian influenza virus that we set
the stage for an overreaction; not to say that
we won't be vigilant and that we won't respond
appropriate to the situation and do so very
quickly. But we are trying to avoid any kind of
overreaction because of the situation that's
currently in parts of Asia as well as parts of
Europe now.
I mentioned too, I need to clarify that I
said we do have vaccines. We have a vaccine
bank. Now these are vaccines specifically for
use in poultry. We have two types of vaccine --
an H5 and H7. I mentioned because we have
concerns that a low path H5 of H7 virus might
mutate and become highly pathogenic. So we have
both H5 and H7 viruses, 40 million doses; 20
million are an H5 virus, and we have tested
actually our colleagues at the Southeast Poultry
Research Lab, our ARS colleagues have challenged
birds who have been vaccinated with that virus
and found it to be very effective against this
particular H5N1 virus in Asia. So we do have
that on hand, but that specifically is a vaccine
only for use in birds.
We're ready for the next question.
REPORTER: Jerry Hagstrom from National
Journal of Congress Daily. I'm wondering if you
feel that at the present time you have all the
authority you need in terms of dealing with this
should there be an outbreak of avian flu. And
also when you have one of these, I'll say crisis
situations for lack of a better term, when you
have one of these outbreaks how do you get the
money to suddenly rev up to do the things that
you have to do? Is that through the CCC or your
discretionary budget or how does it work? And
what would happen in an avian flu situation? I
guess finally with that, would you need any
special action from Congress, or would the money
be in the budget?
DR. DEHAVEN: Three good questions. I think we
do have the authority, and we've found that in
situations like the Exotic Newcastle situation
in Southwestern United States where we did to
respond we, in fact, declared an emergency at
the federal level and imposed movement
restrictions at the federal level. We did, in
fact, have the authority that we needed to
contain the virus, limit movement so we could
contain it, and limit the area or identify the
area where we had the infection and then control
and eradicate it. So I feel comfortable that
under the Animal Health Protection Act that we
do in fact have the authorities that we need
within the Animal and Plant Health Inspection
Service should we need to exercise them. And
we'll provide an opportunity for Dr. Raymond to
respond as well from FSIS perspective.
But again I think from an APHIS perspective
in dealing with the situation in live birds we
would have the authority that we needed, and I
think that was shown quite vividly with the
Exotic Newcastle disease situation.
Money for those kinds of situations typically
does come through the Commodity Credit
Corporation, the CCC, or emergency funding
route, especially for what used to be called in
the international circles the list A diseases
put out by the OIE which high path AI as well as
Exotic Newcastle are listed as diseases of
consequence and ones that require reporting for
all the member countries of the OIE, which of
course the United States is.
So to the extent that we're dealing with one
of the list A diseases or historically list A
diseases that is not found in the United States.
Otherwise we would go to CCC funding for funding
a response such as that.
We are in the midst of putting in place a low
path avian influenza program specifically for
low pathogenic H5 and H7 viruses. A recent
change of the OIE, those two low pathogenic
viruses were added to list of AI viruses that
are required to be reported when found in a
member country. Because of that and again the
emphasis is because they have the potential to
mutate to a highly pathogenic form, we are
developing this low path H5 H7 program. It
provides for authority to do all the things we
would need to do as if it were high path--
contain movement, depopulate birds, use
vaccination if that was an appropriate route, as
well as it provides for a mechanism to pay
indemnity, some percentage of fair market value
of any birds that need to be destroyed.
Those funds are in our budget now. It's
included in the line item for both the House and
Senate version of the '06 budget. So those
monies are there again specifically for low path
H5 and H7.
We're ready for the next question.
Excuse me. Dr. Raymond, anything to add?
DR. RAYMOND: Not really. Only that the
current laws that we have that allow us to
protect the food supply would be very adequate
with an incident of avian influenza if it got in
the food supply. Our ability to keep the product
from going through or to withdraw it applies to
all bacteria and viruses that may contaminate
the food supply.
REPORTER: I just want to clarify that this
avian influenza would be considered a List A
disease so therefore would be eligible for
funding under the CCC mechanism.
DR. DEHAVEN: Actually the OIE, the World
Organization for Animal Health, has gotten away
from what they used to call List A diseases.
Highly pathogenic avian influenza was in fact a
List A disease. Low pathogenic avian influenza
was not. So they've done away with that system.
And the new system is reportable diseases. So
highly pathogenic avian influenza as well as low
path H5 and H7 are reportable diseases. And so
we've got funding mechanisms in place for both
situations.
REPORTER: Grant Sholfy (sp), Houston
Chronicle. Dr. DeHaven if the H5 and H7 strains
were to mutate, is there any way to tell how
quickly they could do so? And is there any way
to forecast that such a mutation was taking
place?
DR. DEHAVEN: Excellent question. And we have
the appropriate technical expert who can answer
that in the form of David Suarez. While David's
coming up I'll just mention that we are tracking
these viruses very closely. I didn't even
realize there was an area called molecular
epidemiology where you can look at these viruses
at the molecular level and determine how close
they are to mutating from a low path to a high
path as well as helping us to make that
determination.
DR. DAVID SUAREZ: I think the short answer to
that question is, no, we don't have the
predictive ability to know when a virus will
mutate from low path to high path. Certainly
from a research perspective that is something
that we've looked at for a number of years, and
as Dr. DeHaven had mentioned doing a molecular
epidemiology is part of the research we do on an
ongoing basis at our laboratory at Southeast
Poultry. Molecular epidemiology is determining
in the genetic sequence and then comparing that
with other viruses that we know about. So that
certainly can give us some prediction of which
viruses are more likely to become highly
pathogenic because there are some telltale
signals that suggest that a virus is more
adapted to chickens and turkeys, and where we
really think high path originates from.
But as far as the ability to say it will
happen next week or next month or next year, we
don't know for poultry particularly and
certainly maybe the added question is for
humans. Again I think we should push that to
CDC, but we don't have that ability either.
MR. ROGERS: At this point we'd like to open
it up to questions on the phone. Operator if
you'd please bring us the first question?
OPERATOR: If you have a question on the phone
please press *1 on your touchtone phone. You'll
be required to record your first and last name
so your question can be addressed. Our first
question comes from Erin Sykes (sp), NBC News
Channel.
REPORTER: Hi. Good afternoon. Just a quick
question. Are there any other states besides
Alaska that you are monitoring they think might
be at the highest risk for migratory birds
coming into the area?
DR. DEHAVEN: That question will go to Rick
Kearney from the Department of Interior.
DR. RICK KEARNEY: At this time sampling in
wild migratory birds is taking place in a
deliberate fashion in the state of Alaska.
However there are opportunistic sampling
opportunities taking place all along the Pacific
flyway. In other words, when a bird is captured
for another reason, banding of for
rehabilitation perhaps, we are taking samples
from those birds and testing them. And we have
found no positives whatsoever.
DR. DEHAVEN: I think Rick mentioned earlier
in his comments the fact that the Department of
Interior working with USDA is planning for more
extensive surveillance in the coming year as
well, with several of the flyways.
Next question, Operator?
OPERATOR: Lance Gay (sp), Scripps Howard News
Service.
REPORTER: I wanted to know how concerned you
are about traffic, illegal traffic in birds and
the effectiveness of this movement of this
disease, the spread of the disease.
DR. DEHAVEN: I'll take that. This is Dr.
DeHaven. We in fact are genuinely concerned that
this H5N1 virus in Asia and now parts of Europe
could find its way to the U.S. through products
that would be prohibited, smuggled or otherwise.
But prohibited into the United States. In fact
we have found such product through vigilance
working closely again with our colleagues in
Customs and Border Protection.
But the fact that product is coming or might
come from those countries doesn't, one,
necessarily mean it's going to have the virus
or, two, even if it does that it would find its
way into commercial poultry.
But because of that we have alerted Customs
and Border Protection and they are particularly
vigilant for any movement of cargo or passengers
that are coming from affected countries. We
initially, in 2003, imposed restrictions on the
importation of poultry, poultry products or
birds from any of those affected countries. So
we have the legal routes cut off.
We also have a group within APHIS called
SITC, Smuggling Interdiction and Trade
Compliance, who specifically targets ports and
products and shipments coming into the United
States specifically looking for prohibited
product and of course now that we have the avian
influenza situation they're targeting that
area-- those kinds of products, that kind of
movement from those affected countries.
So it is an area of concern. It's one of the
potential pathways. Wild birds are certainly not
the only potential pathway where that virus
might find its way here. But it's also an area
where we have stepped up surveillance. We're
looking very hard recognizing that that is a
potential pathway.
I think we're ready for the next question,
Operator.
OPERATOR: Dan Goldstein, Bloomberg News.
REPORTER: Yes. Hi. Dr. DeHaven, in July APHIS
put out an analysis of the threat of HPAI to the
U.S. and one of the things -- and I'll read this
from it -- in the event of an HPAI outbreak in
the U.S., our foreign trader partners will
impose a ban on all exports of poultry and
poultry exports. I wanted to ask, does that mean
that if the cases of a migratory bird is found
that all poultry exports would be shut down? Or
would this have to be a significant outbreak in
our commercial flock?
DR. DEHAVEN: Very good question. There is a
concept within the OIE, the World Animal Health
Organization, called compartmentalization. The
essence of that is that if a disease is
compartmentalized either within a compartment of
a commercial industry or within a segment of the
population separate from the commercial
industry, the trading partners should in fact
only impose restrictions on that compartment.
We would argue that the presence of H5N1 in
migratory birds would be a good early warning
signal that it was getting closer, but certainly
no indication at all that we have the virus in
commercial poultry and therefore no substantive
basis to impose trade restrictions on poultry or
poultry products from the United States.
That would assume, and of course we would
assure trading partners that we have good
surveillance in place, that if it had found its
way from migratory birds into commercial poultry
that our surveillance would have picked it up
and obviously we would restrict ourselves at
that point. So we would make the argument in the
context of the OIE that that disease found in
the migratory bird is compartmentalized, it's
not part of our commercial poultry production,
it shouldn't be the basis for imposing any
restrictions on trade in poultry or poultry
products form the U.S.
But indeed those nations are sovereign
nations, and their trade policies sometimes
don't always reflect the science and the
standards of the guidelines put out by the OIE.
We would certainly make that argument, and I
think could very effectively argue that would be
no basis for imposing trade restrictions.
Next question, please?
OPERATOR: Martha Brant, Newsweek Magazine.
REPORTER: Good afternoon. It's again on the
migratory bird issue. I'm wondering how many
birds, and I think the Pacific and the Alaska
Flyway are two different things, but how many
birds have been tested so far or in 2005? And
under this new Interior Department expansion
plan, is there a target number that will be
tested in 2006?
DR. DEHAVEN: Let me turn the first part of
the question over to Dr. David Suarez who has
been involved in the testing of the birds from
the Alaska Flyway. And then also to Rick Kearney
to talk about the plans for the future. So
David?
DR. SUAREZ: Yes. Our laboratory has been
working in partnership with several state
universities including the University of Alaska
to do wild birds surveys, both in Alaska and
actually in some of the flyways in the U.S.
Over the last five years we've tested about
12,000 wild bird samples primarily from extreme
Western Alaska, the Aleutian Islands chain, and
have found a very low incidence of avian
influenza and no H5s or H7s in any of the
samples that we've tested. We have had a few
positives of H4 and H6, which would be expected
in a wild bird population again. Again we do
feel like migratory birds are the primary
reservoir for avian influenza.
So we have done a number of samples. I can't
give you the precise number that we've done this
year. Typically we've been testing 2,000 to
3,000 samples, and some of those samples are
still being processed at this time.
OPERATOR: David Brown, Washington Post.
REPORTER: Thank you. Are there any known
documented migratory routes which birds come
into North America from the places in Southeast
Asia where H5N1 is now endemic? Or are we
talking mostly about birds that are blown
off-course, but that's how it would get to North
America?
DR. DEHAVEN: To go back to that last question
as well as answer this one. This one goes to, if
I heard correctly, is there any documented
evidence of migratory birds from Asia finding
their way into the U.S.? Is that correct? To the
extent that you can address that?
DR. KEARNEY: I'd like to go back to the
previous question asking about the amount of
sampling that's taking place in Alaska in 2005.
The work that is going on there now and still
continues to this day is an ongoing effort in
order to perfect our message to work through the
processes and make sure that we have all the
bases covered when it comes to migratory birds
in Alaska. Our sampling effort is significantly
smaller than that being conducted by the
Department of Agriculture at this time due to
constraints in resources. I can't go into the
2006 situation very much because that is
included in a piece of legislation that has yet
to go before Congress. But I can tell you that
it will significantly increase the amount of
sampling that we envisioned taking place in
Alaska and elsewhere in the year 2006.
Now as for the follow-on question, birds
blown off-course from Asia, there are from time
to time individual birds called vagrants that
are moved by weather patterns or other natural
phenomena out of the normal migratory pathways.
Are there specific cases of birds being blown
from infected areas to the United States? Not to
my knowledge.
H: Thanks. Next question, Operator?
OPERATOR: Thank you, Andy Worgan (sp) of the
Oregonian.
REPORTER: Hi. Thanks for holding this. I'm
curious. You talked about doing some live bird
market testing in the Northeast, and you've
talked about doing migratory bird testing
primarily in the far West Coast in Alaska. But
now that we're seeing the bird flu, the high
pathogenic flu spreading in Europe I'm wondering
is there any thought about testing for migratory
birds, for instance on the East Coast or maybe
doing any wild bird market tests in the West or
in other parts of the country? I'm not
understanding why it's geographically divided
like this I guess.
DR. DEHAVEN: Rick? I think that's another
good one for you in terms of migratory bird
patterns.
DR. KEARNEY: Connections between North
America and Asia are very well-documented.
Between Eastern Asia and the Pacific Northwest
there are numerous species that have very
well-documented, well-understood regular paths
of migration and which they nest in Alaska and
on the North Slope and move southward away from
the North Slope away from winter conditions to
over-winter in more temperate climates around
the world. So these patterns are very
well-understood, and we recognize the birds that
are on the move now away from Alaska and away
from North America are going to be
over-wintering in areas in which we have
observed outbreaks of H5N1.
In return when these birds return in the
spring we suspect there's a possibility that a
number of these birds may return with the virus,
and we want to be alert to that fact; though
there is no documented evidence that migratory
birds survive long enough to carry H5N1 over
long distances, we can't rule out that fact. So
that is why we are being prudent in conducting
sampling in Alaska and the Northwest in the
spring of 2006.
Now as for the European connection, there are
a much fewer number of species that have
connections between North America and Europe as
compared to North America and Asia. We have been
looking at those species and looking at the
sheer numbers of birds that cross between
Northern Europe and North America and are
assessing the need to conduct sampling in the
Atlantic Seaboard. But it's very clear to us
even at this early stage that the potential
movement of an infected bird from Europe to
North America is much less than we would expect
to see moving from Asia to North America.
OPERATOR: Jean Maurice Santone (sp), ASP
Agency Funds Press.
REPORTER: Yes, thank you. I have a question
about, is it possible all the animals like pigs
could be infected with the H5N1?
DR. DEHAVEN: We do know there are a number of
species of animals that are susceptible to
influenza viruses. I'm not aware of any specific
study with regard to the Asian H5N1 virus as to
whether or not it has or has not affected other
species. But again as a matter of routine, swine
for example are a species of animal that have
been known to be affected by some avian viruses.
It is a potential that we are looking at. In
fact we have initiated discussion with our
poultry industry if there is or should be some
program that should initiate with regard to
surveillance in swine. But again I'm not aware
of any particular evidence to show that this
particular virus, H5N1, has found its way iuto
other species. But I'll refer to colleagues if
they know of any.
Please? David Suarez.
DR. SUAREZ: I think the chance of it going
into swine is still unclear. The answer has not
been solved. There's two pieces of evidence.
There have been some serologic reports of H5
antibody in swine out of China from 2003. I
don't believe there have been any reports of
antibody positive pigs from 2004 and 2005. So
there's at least that possibility. There have
been a couple very small studies of
experimentally infecting pigs in the laboratory
and in both those cases they have seen some
virus replication because they've given a large
amount of virus to these pigs. But the pigs did
not show any clinical disease.
DR. DEHAVEN: Operator, this will be the last
question, please.
OPERATOR: Carol Sugarman, Food Chemical News.
REPORTER: Yes. This is for Dr. Raymond. I
wanted to know is it theoretically possible to
transmit the H5N1 virus to humans through eating
undercooked infected poultry? And is there any
concern about that, particularly in Asia?
DR. RAYMOND: To answer your question,
theoretically, probably yes. There have been a
couple cases in Asia of human infections with
H5N1 that there may be a link to eating
undercooked, diseased poultry and/or drinking
raw blood, uncooked blood from diseased poultry,
which is evidently a cultural situation.
The epidemiological studies in Asia are less
than ideal on tracking some of these individuals
for obvious reasons. So to say those two
individuals that there has been a suspected
link, were not exposed by perhaps living in
conditions with lots of poultry is an option
there. We do not know that for a fact. But I
would have to say, Carol, that theoretically we
are concerned about eating raw poultry products
from diseased birds. That's why we continue to
stress proper processing, handling and cooking.
DR. DEHAVEN: Thank you, Dr. Raymond. Well
that concludes our press conference. Just a
couple of wrap-up comments that I think are
particularly relevant. Again one of the main
reasons that we wanted to have this conference
today was to alert you to the fact that we
routinely deal with avian influenza viruses.
Typically they're low pathogenic. We're
concerned if they are H5 or H7s simply because
of the potential for them to mutate and become
highly pathogenic in poultry.
So if we have one of those, if you will,
routine or regular incursions I can assure you
and I think hopefully we've convinced you today
that we've got the surveillance in place to find
it quickly and the mechanisms to respond quickly
and deal with it. But if it is in fact one of
those routine incursions, no reason given the
current situation in Asia to overreact based on
that particular situation. This is something
that we deal with on a regular basis. And indeed
we could find an avian influenza virus in the
U.S. tomorrow; that certainly doesn't mean that
it is this H5N1 that is in parts of Asia and
Europe.
I think the other thing, is to assure the
public there's absolutely no reason not to have
turkey for Thanksgiving. Indeed whether it's one
of our routine incursions of avian influenza or
otherwise, the public health is certainly
satisfied with the mechanisms that we have in
place both in terms of finding and in responding
to it in commercial poultry as well as from our
vigilant Food Safety Inspection Service
colleagues.
So we have good mechanism in place, and I
hope all of you will be enjoying Thanksgiving
turkey. Cooked at 280 degrees. Thank you.
MR. ROGERS: 180 degrees on that turkey. I
just want to thank everybody for coming out
today. For more information of course we posted
new information on our website which is
WWW.USDA.GOV/BIRDFLU, and of course for APHIS
USDA-related questions please feel free to call
our Public Affairs Office. It's 202-720-2511, or
301-734-7799. Thank you. |