| Bird
Flu?
Bird Shmoo!!
Worried
about the H5N1 bird flu virus causing a pandemic? To go by the media,
you should be. But study the scientific evidence and you can only
conclude that the media scare is mostly hype.
The
Spanish flu pandemic of 1918 killed 25 to 50 million people —
2½% and 5% of the world’s population.
If
you believe fear-mongers writing for the world’s media, the
supposedly virulent H5N1 bird flu virus will cause another pandemic
any day now. If it’s as bad as 1918, 125 to 300 million will
die.
With
747s, instead of the more leisurely steamships of 1918, any pandemic
will spread a lot faster today so the death toll could possibly
reach a billion people.
A
terrifying prospect, isn’t it.
But
major differences — aside from 747s — between 1918 and
now mean that the real chance of another 1918-style bird flu pandemic,
while not zero, is pretty damn close.
To
start with, in 1918 scientists didn’t even know what a virus
was. They knew that the Spanish flu was caused by something smaller
than bacteria — but until the 1940s no-one could see or isolate
a virus, let alone analyze one.
Today,
not only do we know what viruses are, we have developed some protection
against them; and scientists can decode their genetic sequence.
Secondly,
the Spanish flu came out of the blue, so to speak. There was no
warning — and nor, of course did anybody expect it.
By
the time people realized it was a pandemic, it had already spread
world-wide.
Today,
in contrast, everybody expects a pandemic to begin any day, and
health authorities everywhere are already planning what to do. (Let’s
just hope their preparations will be more effective that their planning
for catastrophes like hurricane Katrina!)
Whatever
happened
to SARS?
But
remember SARS? It appeared from nowhere in 2002. And who expected
something like it? Not a soul.
Yet,
just days after it was first identified as a new and unknown disease,
sufferers and their contacts were quarantined; travellers were screened
— and so many people decided to stay at home that airlines
like Hong Kong’s Cathay Pacific suffered dramatic declines
in passengers — and profits.
Within
just a few weeks, SARS had been identified as a corona-virus, and
soon thereafter its source was traced to civet cats in China’s
Guangdong province.
SARS,
while not as contagious as influenza, was pretty nasty just the
same. Almost 10% of the people who caught it died. Ironically, though,
so effective were the measures taken to isolate sufferers that over
20% of the people infected were doctors, nurses and other hospital
staff — who caught it from patients!
This
totally new, virulent but unknown and unexpected disease —
spread around the world almost instantly by 747s — killed
a total of 774 people. Thousands more people die from diseases like
malaria and dengue fever every year.
Unlike
SARS and the Spanish flu, the world now expects a disastrous, world-wide
influenza pandemic to happen any day. So everybody’s watching
for it.
The
moment someone catches the H5N1 virus from a bird, they’re
isolated. Birds carrying the virus are being culled in the millions
— further reducing the chances of it mutating into something
that can jump from human to human.
However,
as the British Medical Journal put it in its October 29
issue:
The
lack of sustained human-to-human transmission suggested that this
H5N1 virus does not currently have the capacity to cause a human
pandemic,
and
added that the warnings are entirely a theoretical speculation.
Is
there any evidence for this conclusion?
To
judge from the press, this H5N1 avian flu virus is something new.
Maybe
it isn’t. What is certainly new is that every time
someone catches it, it’s on the front pages of the newspapers.
The
Truth About
the Spanish Flu
Dr.
Jeffery Taubenberger — a molecular pathologist with the Armed
Forces Institute of Technology in Washington, D.C. — led the
research team that recently decoded the 1918 Spanish flu virus.
What
they discovered: it was not H5N1 — or any other known
avian flu virus. What’s more, though definitely a bird flu
it didn’t originate in chickens, ducks or geese. In fact,
nobody knows at the moment what bird it came from.
As
part of their research, Taubenberger and his team analyzed tissue
samples from 25 preserved waterfowl, vintage around 1918, stored
at the National Museum of Natural History in Washington.
They
discovered that avian flu viruses those birds carried were identical
to same variants found in birds today.
In
nearly a century, these viruses have hardly changed or evolved at
all.
To
people used to taking a flu shot every year — because last
year’s flu shot won’t protect you against this year’s
flu — this may seem a surprising discovery.
But
human influenzas are continually evolving — as the virus gains
resistance to each new medication.
As
birds don’t take antibiotics, get flu shots or other medical
cocktails, the viruses they carry don’t need to change.
The
H5N1 avian flu virus is known to have been around since the late
1950’s. For all we know, it’s been infecting people
for hundreds — if not thousands — of years. And in all
that time, it has not caused a human pandemic. But only in 1997
did scientists actually discover it had infected humans. As a result,
today every person this virus infects is religiously reported instead
of being ignored — which turns it into a scare, but not a
pandemic.
Not
everyone agrees, as we’ll see in a moment. But here’s
something else that’s suggestive: until very recently, only
severe cases of H5N1 infection have been studied by doctors
and scientists: the people who end up in hospital at death’s
door, where nearly half of them die.
So
we’re given the impression — fostered by the scare-mongering
media and scientists desperate for bigger government grants —
that this is an incredibly deadly virus; one far worse
than the Spanish flu.
A
study published on January 9th in the Archives of Internal Medicine
casts serious doubt on this conclusion. In a province near Hanoi,
Vietnam, where 80% of residents keep chickens and H5N1 is rampant,
45,476 were randomly-selected for a survey. 8,149 of them —
or 17.9% — reported having had flu-like symptoms with a fever
and a cough. And nearly two-thirds of them had direct contact
with sick or dying birds.
While
blood-testing needs to be done to confirm the hypothesis, it seems
highly probable that the H5N1 strain of avian flu is very similar
to the other viruses birds carry: capable of infecting humans but
with very mild effects — indistinguishable from the common
cold — when it does. Only a tiny percent of people infected
react so badly they have to go to hospital. Until now, they were
the only cases ever reported, so creating the unwarranted fear that
H5N1 was exceptionally virulent.
The
Real Bird Flu Danger
Unfortunately,
there is a very different bird flu danger.
The
H5 strain of viruses is just one of sixteen different virus
groups birds carry around — rather like a flying “virus
soup.” As birds’ immune systems are adapted to these
viruses, they rarely get sick.
This
is about to change.
Countries
like China and Vietnam, which are among those killing millions of
birds carrying this virus, are inoculating them as well.
So
the H5N1 virus — not to mention all the other viruses
birds carry around with them — will soon gain resistance to
current treatments (like Tamiflu).
Indeed,
the New Scientist recently postulated that the H5N1virus
could well be the result of past inoculations of domestic fowl.
While the latest evidence suggests they were wrong, there is no
doubt that thanks to these inoculations H5N1 could easily evolve
into an entirely new strain, already resistant to all known
treatments.
If
that happens, even if it doesn’t jump to humans it could easily
decimate the world’s bird population.
That
said, it is possible that the H5N1 virus — or one of the other
many such viruses birds carry with them — could jump to humans.
After all, that’s how both the “Asian flu” (1957-58)
and “Hong Kong flu” (1968-69) got started.
If
that happens, what’s the best protection?
The
Spanish flu pandemic gives us the answer (and it’s not Tamiflu).
One
of the countries least affected by the Spanish flu was a country
that has long had exceptionally strict quarantine laws: Australia.
But
not as strict as American Samoa. As telegrams carried the news faster
than steamships, American Samoa knew about the Spanish flu long
before it arrived there. They simply closed their doors, and did
not let any ships dock except under strict quarantine conditions.
The number of deaths from Spanish flu in American Samoa: zero.
But
the Spanish flu did hit Western Samoa, just a few miles
away, where there was no quarantine: some 20% of the population
died.
That
SARS didn’t turn into a pandemic is further proof
of the effectiveness of quarantine in stopping a highly contagious
disease in its tracks.
So,
provided any new strain of bird flu is spotted early — virtually
certain given the current vigilance of the world’s health
authorities — it will be contained long before it can turn
into a pandemic.
Chances
are, that’s never going to happen. But even so, you can be
sure that bird flu scares will be a staple of the world’s
press for many years to come.
Why?
It’s simple. Last year, the George W. Bush announced an “emergency”
$7.1 billion program to combat the bird flu scare. Other governments
around the world are setting up similar programs, though on a smaller
scale.
This
means we have an entirely new scientific establishment funded by
inexhaustible government money whose sole reason for existence is
to find something that hasn’t happened yet — and may
never happen.
To
justify their existence and to get more of that lovely government
green stuff, you can be sure that this new “government program”
will do everything in its power to keep the bird flu scare alive.
One way is adopting the political techniques of “spin.”
For
example, in an article published in Thursday’s (23 March 2006)
issue of Nature, Yoshihiro Kawaoka, a researcher at the
Universities of Tokyo and Wisconsin, wrote that one reason why the
H5N1 virus hasn’t spread from human to human is that it infects
the bottom area of the lungs.
Other
flu viruses prosper in the top of the lungs, so they’re easily
spread when people cough, and even breathe out. H5N1 doesn’t
have that “advantage.”
Nevertheless,
he concludes that his findings suggest that we “may have more
time to prepare for an eventual pandemic.”
The
three flu epidemics of the 20th century were caused by the H1, H2
and H3 series of bird flu viruses. All scientists agree that the
H5N1 virus must go through many mutations before it can be spread
by human to human contact. Not only does it infect the lowest part
of the lungs, but it appears that the only way a human can get it
from chickens is by close contact with lots of infected birds. The
kind of thing that can happen when you sleep with them.
So
here we have a virus which —
—
has never, as far as we know, spread from one human to another;
— is hard to get in the first place;
— if someone has it, is not released easily by the lungs anyway
— and to the extent it is, in tiny quantities compared with
sleeping in a chicken coop; and
— has to go through a large number of unlikely mutations first
in order to become a pandemic in humans. One of those mutations,
presumably, will be to transfer its preference to the top of the
lungs from the bottom, probably the least likely of all.
Given all these obstacles, is it science to conclude that
it is only “a matter of time” before this virus causes
a human pandemic?
Or
is this the sort of “prediction” you’d expect
from government-funded politicized science where the prime
imperative is not truth but staying plugged-in to the government-drip
machine?
And
to stay plugged-in, to get the next government grant, you’ve
got to follow the party line which is: a bird flu pandemic is inevitable.
As
entrenched government programs are almost never axed, I expect to
go on reading that “prediction” until the day I die...of
natural causes. —
Mark Tier.
Copyright
© 2006 by Mark Tier |