Published
Due to circumstances beyond my control, computer glitch (?), the length
of the former thread (Thread 2), and the tremendous amount of new
information coming in at this time, it is probably necessary to start a new
thread on Avian Influenza Awareness.
I pulled out the following commentary from an earlier thread regarding
a rather chilling video (at least to me), given by Dr. Margaret Chan. The
information is not current as the video was shot in February 2007, but
what she has to say is still pertinent considering how much further the
spread of H5N1 has grown. It is now on three continents with a CFR (case
fatality rate) for human beings of over 60%. It is still however, primarily
a bird disease, but that may be changing.
From Margaret Chan MD, Director-General of the World Health Organization:
I did not attend the CIDRAP Conference in February, 2007 where this video
was shown. I almost got there, but changed my plans at the last minute.
Dr. Chan will appear in a screen to your right. You do not have to press
any buttons, just wait for the screen to appear, and for her presentation
to begin. You do not have to be a subscriber for the video to play.
Just be patient for a few seconds and view it.
I have to say that even though everything Dr. Chan is saying in this
presentation is well known to me, just hearing her speak so
clearly and honestly of what might occur, has shaken me. Though
many who research this information will say that her estimates
of the possible future cases may be too conservative, the numbers are
still hugh. This event will change the world, and challenge all of us.
The video will take 16 minutes of your time. I hope that the
very serious nature of Dr. Chan's message will cut thru the apathy and
disbelief about the possibility of H5N1 triggering the next pandemic,
and encourage some individual planning and family preparation.
Share it with people that you care about.
https://umconnect.umn.edu/chan
(hat tip crofsblog)
Pakistan Reporting Bird Flu in Poultry
http://www.flutrackers.com/forum/showpost.php?p=165228&postcount=14
...the WHO and police officials, district coordination officer and Livestock
and Dairy Development Department staff rushed to Hamid Poultry Farm
and directed the concerned staff for culling the broilers. There were total
6,000 broilers in which 4,000 had already expired and the remaining 2,000
were culled, said an official.
"We sent the samples to Islamabad laboratories and a positive report of
avian influenza virus was received. It created an alarming situation across
the district and the vet doctors were told to rush to the area on emergency
basis," said a doctor.
...the Health Department put the people in a radius of three kilometres of
the Hamid Poultry Farm under observation and their tests would be
conducted...
http://www.recombinomics.com/News/06220802/H5N1_NW_Pakistan_2.html
Although the above comments note that no farm workers had symptoms,
disease onset dates are usually 2-4 days after exposure, so the above
clearance may be premature.
The location is near the human outbreak that began in October, 2007, but
was not reported until December. Three brothers were H5N1 confirmed
and the familial cluster defined human to human to human transmission.
Bird Deaths on Russian Islands Near Japan
http://www.recombinomics.com/News/06240802/Birds_Kunashir.html
The Russians are saying the tests are negative for bird flu so far but
the location where the birds have died is worrisome as it is close
to other areas that have positive cases not to mention the close
proximity to Alaska.
Check the map for location:
Like the excessive poultry deaths on Komchatka, thus far the testing has
not produced confirmation of H5N1, but the location of the dead or sick
birds raises concerns that the Fujian strain of H5N1 is migrating north
along the East Asian flyway, which links to Alaska.
Supari: Namru-2 is of no benefit to Indonesia
http://crofsblogs.typepad.com/h5n1/2008/06/supari-namru-2.html
The fate of the US Naval lab, NAMRU2 is probably going to be decided
by the controversial Health Minister, Supari. She has not only been
refusing to send viral samples of H5N1 from human cases in Indonesia
to the WHO, and but has initiated news censorship of the true extent of
human and poultry cases in Indonesia.
I am wondering how much money has the world already given to
the corrupt govt in Indonesia for tsunami relief? Who is paying for the
enormous amount of Tamiflu that is being used there? Isn't this
country supposed to be a US ally?
Health Minister Siti Fadilah Supari refused to respond to written questions
posed by the House of Representatives` Commission I to her on the
presence of the US Navy`s medical laboratory Namru-2 in Indonesia.
"To me, nothing needs to be explained because the presence of
Namru-2 is obviously of no benefit to Indonesia," the minister said in a
working meeting with the House`s Commission I here on Wednesday.
"The Namru-2 laboratory is not any better than our own laboratories
such as the Eijkman Laboratory in Bandung. Why didn`t Commission I
visit our own laboratories which are of clear benefit to the country?"
she said.
Minister Supari said the health ministry`s Health Research and
Development Center had gained nothing from Indonesia`s cooperation
with Namru-2.
"We only got small research jobs, while when we asked cooperation
in tuberculosis (TBC) research, they refused because they did not have
any interest in it," she said.
The US Embassy's Fact Sheet on NAMRU2
http://www.usembassyjakarta.org/press_rel/April08/FactSheetNAMRU2.html
It would appear that no matter how much is done for Indonesia, it will
never be enough for Supari. She seems to be infected with a terminal
sense of entitlement.
What has NAMRU-2 done for Indonesia?
* They continuously provide essential training in fundamental laboratory
techniques to hundreds of Indonesian health workers and researchers.
* They have trained over 50 Indonesian scientists in the laboratory
cultivation of malaria parasites and in sophisticated disease detection
methods.
* They train 30 Indonesian university students each year in virology
and bacteriology techniques.
* They demonstrated that primaquine prevents malaria, thereby making
this common and affordable drug useful to Indonesians who travel to
high-risk areas.
* They led a $4 million effort against a malaria epidemic in Central
Java; annual malaria cases decreased from 70,000 to fewer than 4,000.
* They provided training, advanced testing, supplies and epidemiology
support to the Ministry of Health to characterize recent dengue outbreaks
in Palembang, Bandung, Jakarta, Yogyakarta and Medan.
* Provides job for over 150 Indonesians.
* They donated a fully furnished research laboratory in Jayapura, Papua, to LITBANGKES.
Present Situation and Clinical Features of A/H5N1 Human Infection
http://www.flutrackers.com/forum/showpost.php?p=166010&postcount=26
Here are the disturbing facts about bird flu in Indonesia from an
abstract of a presented paper at the 13th ICID - Kuala Lumpur,
Malaysia- June 19-22, 2008 ( also posted in the Scientific Library
Forum). They are saying that Tamiflu has not worked for these
cases.
A proportion of the cases (about 50%) had history of direct contact with
sick, healthy or died poultry, 30% had history of indirect contact with
poultry in the environment either sick or healthy. In about 20% of
the cases the history of contact to source of infection could not be
concluded.
Fever, cough and breathlessness are the most frequent encountered
clinical feature. For the purpose of screening some criterias for suspect
are used: ILI, ARI or pneumonia with history of contact with AI source
of infection, rapid progressive pneumonia leading to ARDS or fatality,
unresponsive pneumonia treated adequately with antibiotics, clustering,
or when viral infection is likely (leucopenia, lymphopenia). Antibiotics
are used as initial treatment of CAP empiricly and when there is
evidence of secondary bacterial infection. Antiviral treatment with
oseltamivir has limited clinical benefit especially when given earlier.
. . . Antiviral treatment withoseltamivir has limited clinical benefit especially when given earlier
Limited news reports from Indonesia suggest that Tamiflu is currently still effective, so I interpret this phrase to mean that it does work if given shortly after infection or possibly used prophylactically.
Limited news reports from Indonesiasuggest that Tamiflu is currently still effective, so I interpret this phrase
to mean that it does work if given shortly after infection or possibly used prophylactically.
Hello, Al. You are probably right! Of course, I did read this originally at
1:30 am after working a very stressful shift on a pysch unit. I suspect
my analytical ability was not up to snuff.
The questionable wording:
" Antiviral treatment with oseltamivir has limited clinical benefit
especially when given earlier. "
Or:
"Antiviral treatment with oseltamivir has limited clinical benefit
especially when given earlier. "
I did find this very confusing since using Tamiflu during the first
48 hours seemed to be the standard of care. It is true that the Tamiflu
blanket must be still effective or they would not go to the trouble of using
it to protect groups of people at risk.
However, if you tell me that a drug has "limited" clinical benefit
though, I am going to think that it is not very effective even though this is
all there is to work with. Of course, if someone is misdiagnosed, then
they might not get Tamiflu early enough...
Maybe, the wording could have been better in this abstract.
Lost in translation perhaps? Or this reader needs more sleep...
Nice to hear from you, though.
H5N1 Pre and Post-Pandemic Vaccine Concerns
http://www.recombinomics.com/News/06230801/H5N1_Vaccine_Concerns.html
Here is the situation. Several countries have stockpiled some type of
prepandemic vaccine, the US among them. The problem, or problems
I should say, are these. There isn't nearly enough vaccine, and these
are based on older strains of H5N1 that may not be effective on the actual
pandemic strain, whatever it might be, since viruses constantly evolve.
And, btw, the shelf life is about to expire on the first US prepandemic
vaccine in about 18 months.
Question, so what is the most effective use for these soon to be outdated,
limited supply of immunizations? Dr. Niman of Recombinomics answers,
but govt may not like the suggestions. They would rather keep these
vaccines on hand to have something to give out to a few million people
even if it doesn't work.
Here is a smarter solution, that might just be in the world's best interest.
Give them away now. Give them to the countries where humans are
being infected right now to help delay adaptation of the virus to humans.
We can only benefit from what otherwise will just be an expensive waste
as the virus evolves away from the early strains these vaccines were
based on.
Both the 1918 and 1968 pandemics showed a wave as lasting 17 weeks
with a peak at week 8.
Current estimates for start of vaccine production in the EU from time of
identifying the pandemic virus is 22 weeks. This would likely still be of
some use but may be better characterized as a 'post pandemic' vaccine
or at least post 1st wave.
..the dramatic spread of clade 2 was been recent, and it accounts for
virtually all reported human cases in the past few years. However,
most approved pre-pandemic vaccines target clade 1, which was the
H5N1 in humans when vaccine development programs began in early
2005.
Stockpiling these vaccines, or those targeting early clade 2 isolates, will
not be optimal for the current clade 2 in circulation, as the various sub-
clades evolve away from the 2005 isolates. Thus, these vaccines may
be useful for priming patients now, but would have limited utility for a
raging pandemic, and may in fact drive H5N1 evolution because of poor
matches as seen in poultry vaccines.
However, use of these vaccine now, when H5N1 has not been
established in human populations could delay adaptation to humans
by reducing the number of human H5N1 infections.
Migration of H5N1 Clade 9 Into Indonesia
http://www.recombinomics.com/News/07040801/H5N1_Indo_Clade_9.html
To better understand the Recombinomics commentary, here is the
definition of a clade from this govt site:
http://www.pandemicflu.gov/glossary/index.html
clade: A group of organisms, such as a species, whose members share
homologous features derived from a common ancestor. The avian virus
H5N1 clade 1 includes human and bird isolates from Vietnam, Thailand,
Cambodia, Laos, and Malaysia. Clade 2 viruses have been identified in
bird isolates from China, Indonesia, Japan, and South Korea.
homologous: Similar in position, structure, function, or characteristics.
H5N1 is endemic in Indonesia, so it seems easy to forget that it winged it
there from somewhere else, and now this Clade 9 has appeared. I am
not the only one wondering if this will be a threat to Australia at some point.
This new clade represents an independent introduction, and the public
sequences...are limited to waterfowl and are most closely
related to clade 9 sequences in China.
The location of the clade 9 sequences suggest that the Indonesian
sequences were due to migratory birds flying along the Australia /
East Asia Flyway and raise concerns that the current public
sequences from Indonesia seriously under-represents the H5N1
diversity in Indonesia.
Reports of Vaccine Resistance to H5N1
Two different countries on two different continents now
reporting problems with bird flu vaccine effectiveness.
Of course, they are referring to a vaccine used only for
birds. There is no vaccine in use for humans at this time.
Vaccine Resistant H5N1 in Hong Kong
http://www.recombinomics.com/News/07070804/H5N1_HK_Vaccine.html
The bird flu vaccine used for local chickens is gradually losing its
effectiveness, and total failure is not too far away, a leading
microbiologist warned yesterday.
This is happening because the H5 virus, which causes bird flu, is
shifting further away from the so-called Fujian strain against which
the vaccine was originally effective, the University of Hong Kong's
head of microbiology, Yuen Kwok-yung, said.
H5N1 Endemic in Egypt
http://www.recombinomics.com/News/07070802/H5N1_Egypt_Endemic.html
The event is unlikely to be contained and is now considered to be
endemic. No more follow-up reports will be made, but instead,
information about this disease will be included in the future six-
monthly reports.
The above comments from the OIE final report from Egypt declare
H5N1 endemic. Consequently, updates will be submitted at six month
intervals. The declaration is not a surprise. At the end of 2007 and
beginning of 2008, Egypt reported widespread outbreaks in spite of
an extensive vaccine campaign. Many of the H5N1 outbreaks were
in vaccinated flocks...
Concern Justified
http://afludiary.blogspot.com/2008/07/expert-poultry-vaccine-losing.html
Sometimes the use of vaccines might not be the best idea. It
would appear that it can result in unintended, disastrous consequences.
While the use of poultry vaccines is controversial, and certainly not
universally accepted, in many countries where the H5N1 bird flu virus
is endemic their use is widespread.
The concern has always been that vaccinated flocks could contribute to
the silent spread of the disease due to incomplete protection from the
virus, resulting in asymptomatic, but infectious birds.
human adaptation of the h5n1 virus
http://afludiary.blogspot.com/2008/07/study-human-adaptation-of-h5n1-virus.html
silently spreading and adapting to humans in the countries where the
h5n1 virus is now endemic, infections are misdiagnosed, under reported
or never reported as the news about bird flu is now heavily censored. how
is it going to be possible to stop the global expansion of avian influenza?
obviously, it isn't going to be stopped.
"the mutations needed for the emergence of a potential
pandemic virus are likely to originate and be selected within infected
human tissues," said professor dr prasert auewarakul from mahidol
university, thailand. "we analyzed specific molecules called
haemagglutinin on viruses derived from fatal human cases. our results
suggest new candidate mutations that may allow bird flu to adapt to humans."
viruses with a high mutation rate such as influenza virus usually exist as
a swarm of variants, each slightly different from the others. these are
called h5n1 bird flu quasispecies. professor dr auewarakul and his
colleagues found that some mutations in the quasispecies were more
frequent than others, which indicates they may be adaptive changes that
make the virus more efficient at infecting humans. most of these
mutations were found in the area required for the virus to bind to the
host cell.
"this study shows that the h5n1 virus is adapting each time it infects a
human," said professor dr auewarakul. "such adaptations may lead to
the emergence of a virus that can cause a pandemic. our research
highlights the need to control infection and transmission to humans to
prevent further adaptations."
each human infection is viewed as another opportunity for the
h5n1 virus to adapt to human receptor cells.
this study, using virus samples from various organs removed during
autopsies, showed the virus doing exactly that. adapting each time it
infects a human host.
indigo girl
5,173 Posts
H5N1 H2H Under-reporting Supports Complacency
http://www.recombinomics.com/News/06220801/H5N1_H2H_Complacency.html
I don't know what the reasons are for the WHO decision though
Dr. Niman seems to think it is economic. Maybe, it is.
However, he does make a convincing argument for increased
human to human transmission as noted in the prior post and
that is what most interests me.
Some Other Thoughts - Different Sources
http://afludiary.blogspot.com/2008/06/just-new-phase-we-going-through.html
http://www.scottmcpherson.net/journal/2008/6/20/good-news-bad-news-on-indonesian-bird-flu-front.html