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by Barbara Allen
I am writing this article more or less from my
“sick bed” – where I fight the effects of the latest flu turned into
bronchitis. It started last week when my 87 yr. old father came down
with the flu, followed a couple days later by my mother and then a
day later by me. The fever and cough thing seemed quickly to become
a bacterial infection for all of us. And much to our chagrin the
antibiotic we are taking has had no noticeable effect at all. When I
was in Maui this winter visiting my son I met a woman with a similar
illness who had gone through 3 antibiotics to no avail.
Antibiotic-resistant bacteria is on the rise around the world and
one of the primary reasons is the vast increase in the use of anti-biotics
in ways that help to build the resistant forms.
From an article on the Scientific American website
called The Challenge of Antibiotic Resistance by Stuart B. Levy
“Investigators have shown that when one member of
a household chronically takes an antibiotic to treat acne, the
concentration of antibiotic-resistant bacteria on the skin of family
members rises. Similarly, heavy use of antibiotics in such settings
as hospitals, day care centers and farms (where the drugs are often
given to livestock for nonmedicinal purposes) increases the levels
of resistant bacteria in people and other organisms who are not
being treated--including in individuals who live near those
epicenters of high consumption or who pass through the centers.”
Antibiotics are being put in hand cream and baby
“wipes” and kitchen counter “wipes”. We have become a culture of
anti-biotic obsessives.
Unfortunately this way of using antibiotics is
causing the very problem we have feared. Because of the complex
relationship of resistant and susceptible strains of bacteria to one
another and to us and to antibiotics and the way in which they
multiply and mutate, our ignorant attempts to eliminate them from
our lives are beginning to cause some serious problems. How many of
you have partial bottles of antibiotics left over from the last time
you were sick? When you started feeling better – you stopped taking
them, right? You didn’t know that what you were probably doing was
creating a resistant strain in your own body. By not taking all the
prescribed dosage of an anti-biotic we risk the possibility of not
killing off ALL the offenders in our system. Each time we do this we
add to the vast system of developing antibiotic-resistant bacteria.
Already in New York City there are forms of TB that are untreatable
with any known antibiotic. Around the country doctors are finding
more and more cases of illness that can no longer be cured with
antibiotics.
As most of you may know antibiotics are used in
raising livestock. Stuart Levy says
”More than 40 percent of the antibiotics
manufactured in the U.S. are given to animals. Some of that amount
goes to treating or preventing infection, but the lion's share is
mixed into feed to promote growth. In this last application, amounts
too small to combat infection are delivered for weeks or months at a
time. No one is entirely sure how the drugs support growth. Clearly,
though, this long-term exposure to low doses is the perfect formula
for selecting increasing numbers of resistant bacteria in the
treated animals--which may then pass the microbes to caretakers and,
more broadly, to people who prepare and consume undercooked meat.”
”In agriculture, antibiotics are applied as
aerosols to acres of fruit trees, for controlling or preventing
bacterial infections. High concentrations may kill all the bacteria
on the trees at the time of spraying, but lingering antibiotic
residues can encourage the growth of resistant bacteria that later
colonize the fruit during processing and shipping. The aerosols also
hit more than the targeted trees. They can be carried considerable
distances to other trees and food plants, where they are too dilute
to eliminate full-blown infections but are still capable of killing
off sensitive bacteria and thus giving the edge to resistant
versions. Here, again, resistant bacteria can make their way into
people through the food chain, finding a home in the intestinal
tract after the produce is eaten.”
Europe banned the sale and use of livestock
treated with antibiotics and hormones many years ago because
European scientists foresaw the possible effects. And now finally
the pressure has become enough that several of the major US chicken
producers have agreed to stop using antibiotics in a non-therapeutic
way. Tyson, Gold Kist and Perdue have just agreed to end this
practice. Several major fast food chains also agreed to stop using
chicken that is treated with antibiotics. That only leaves the pig
and cattle growers and the fruit growing industry.
As Stuart Levy goes on to say “One component of
the solution is recognizing that bacteria are a natural, and needed,
part of life. Bacteria, which are microscopic, single-cell entities,
abound on inanimate surfaces and on parts of the body that make
contact with the outer world, including the skin, the mucous
membranes and the lining of the intestinal tract. Most live
blamelessly. In fact, they often protect us from disease, because
they compete with, and thus limit the proliferation of, pathogenic
bacteria--the minority of species that can multiply aggressively
(into the millions) and damage tissues or otherwise cause illness.
The benign competitors can be important allies in the fight against
antibiotic-resistant pathogens.”
Reversing Resistance
There are things we can do right now. We can
support farmers in finding inexpensive alternatives for protecting
fruit trees and to encouraging animal growth. We are told that
improving hygiene would go a long way toward enhancing livestock
development.
At home we can carefully wash all raw fruit and
vegetables to clean off both resistant bacteria and possible
antibiotic residue. If you or your child are given a prescription
for antibiotics make sure that the whole course of treatment is
taken. Don’t save ANY. Don’t ask for antibiotics to treat colds and
viruses or minor conditions like acne. You may use antibiotic
ointments on small cuts, but don’t use hand lotions and other
products that include antibacterial agents. We are doing much more
harm than good in using these products
Again from the Scientific American article:
The time has come for global society to accept
bacteria as normal, generally beneficial components of the world and
not try to eliminate them--except when they give rise to disease.
Reversal of resistance requires a new awareness of the broad
consequences of antibiotic use--a perspective that concerns itself
not only with curing bacterial disease at the moment but also with
preserving microbial communities in the long run, so that bacteria
susceptible to antibiotics will always be there to out-compete
resistant strains. Similar enlightenment should influence the use of
drugs to combat parasites, fungi and viruses. Now that consumption
of those medicines has begun to rise dramatically, troubling
resistance to these other microorganisms has begun to climb as
well.”
On February 27, 2002 Representative Sherrod Brown
(D-OH), introduced H.R. 3804, the Preservation of Antibiotics for
Human Treatment Act. It is an important step forward in the effort
to stem the public health crisis of antibiotic-resistant infections.
“H.R. 3804 would phase-out the nontherapeutic use
of eight types of antibiotics in animal agriculture, including
penicillins, tetracyclines, macrolides, lincomycin, bacitracin,
virginiamycin, aminoglycosides, and sulfonamides. All are used in
human medicine or are so closely related to human use drugs that
they trigger cross-resistance. In the future, if any antibiotic used
nontherapeutically in animal agriculture were determined to be
medically-important to humans, that drug would also be restricted to
therapeutic use only in animals. By targeting the nontherapeutic use
of antibiotics, the bill properly allows sick animals to receive
necessary treatment.
The American Medical Association, the American
Public Health Association, the World Health Organization, and other
leading health organizations oppose both the nontherapeutic use of
antibiotics in animal agriculture, and the therapeutic use of
fluoroquinolones in poultry.”
Send a letter to your Member of Congress and ask
him or her to stand up for public health and safety by supporting
H.R. 3804, the Preservation of Antibiotics for Human Treatment Act.
To participate further you can write a letter to
the editor of your local newspaper, work on this issue at the state
and local level, and generally spread the word. To get more
involved, please contact field director Claudia Malloy at cmalloy@cspinet.org
The author of much of the material used for this
article, STUART B. LEVY, is a professor of molecular biology and
microbiology, professor of medicine and director of the Center for
Adaptation Genetics and Drug Resistance at the Tufts University
School of Medicine. He is also president of the Alliance for the
Prudent Use of Antibiotics and president-elect of the American
Society for Microbiology. To read the article in full go to http://www.sciam.com/1998/0398issue/0398levy.html
Believe me – all you have to do is watch your
elderly parents struggle with an illness that is resistant to
antibiotics – or deal with it yourself – to take this issue very
seriously. I hope it doesn’t have to go that far for most of us.
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This column comes to you
courtesy of the Environmental Concerns Group of the DeFuniak Springs
Garden Club.
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