Ulcers
Could My Municipal Water Supply
Have The Bacteria That Causes Ulcers?
This
is not very likely.
Even
though very little is currently known about the epidemiology of Helicobactor
pylori, the bacterium associated with stomach ulcers - it is believed that all
standard disinfection methods used in the U.S. are capable of killing this
organism in drinking water.
But
here is what we understand most about this issue...
Dr.
Katherine Baker, Assistant Professor of Environmental Microbiology and John
Hegarty, a graduate student at Penn State Harrisburg, found H. pylori in more
than 75 percent of 36 tested surface water samples in Central Pennsylvania.
This
study is the first report of H. pylori in surface water in the United States,
demonstrating a major reservoir for this organism outside the human body.
The
results of the research were delivered on in May at the 98th General Meeting of
the American Society for Microbiology in Atlanta, Georgia.
"Water looks to be a major factor in the
transmission of the bacterium," Dr. Baker said, pointing
out that the organism was found in both surface water and untreated groundwater
from shallow wells where surface water contamination is likely to occur.
H.
pylori was first described in the early 1980s by Australian researchers.
The
organism is found in the stomachs of the majority of people in the world.
In a
small percentage of individuals, the organism causes serious consequences.
It is
now accepted that H. pylori is the cause of most duodenal ulcers and between 70
and 80 percent of gastric ulcers.
In the
late 1980s, a link between H. pylori and certain types of stomach cancer was
shown by researchers at Stanford University.
Epidemiological
studies have shown that infection with H. pylori is associated with the level
of sanitation, particularly water sanitation.
In
developed countries, less than 50 percent of the population is typically
infected, while in developing countries the infection is almost universal.
In
addition, H. pylori DNA has been found in sewage contaminated water samples in
Peru where the infection rate is extremely high, leading researchers to
speculate that water might be a source of infection.
Normal
testing procedures do not detect the presence of active H. pylori in water.
Therefore,
the Penn State researchers had to develop a method to detect the organism.
The
researchers combined two staining techniques to enable them to count
metabolically active (viable) H. pylori in water samples.
The
first stain specifically reacts with H. pylori allowing the researchers to
distinguish this organism from other microorganisms in a water sample.
The
second stain only reacts with organisms that are active. Since the staining
process is quite labor intensive, the team's next step is to develop their detection method into a quick and easy test for monitoring water for this
harmful bacteria.
Initially,
Dr. Baker limited her study to surface water.
Shortly
after the research began, one of the secretaries in her department called Dr.
Baker because the secretary's mother had just been diagnosed with an H. pylori
infection.
"Her drinking water came from an
untreated shallow well and she just recently had started to drink lots of water
to help her lose weight."
Dr.
Baker, examined water from the well after a rain storm when surface water
contamination was likely to be high and found active H. pylori.
Dr.
Baker notes that "while we do not
have conclusive evidence that the contaminated groundwater caused the woman's
H. pylori infection, the possibility certainly exists."
Dr.
Baker emphasizes that the research thus far has been limited to untreated water
sources.
"More than half of Pennsylvania's
residents obtain their drinking water from non-municipal supplies. Many of
these individuals draw their water from shallow wells which receive no
disinfection. Therefore, we targeted non-municipal supplies in our
research."
There
is no evidence that H. pylori is found in treated drinking water supplies, and
research by the Environmental Protection Agency indicates that chlorinedisinfection, as commonly used for municipal water supplies, kills H. pylori.
"I certainly have no qualms about
drinking municipal water," Dr. Baker notes.
For
those people who obtain their drinking water from untreated wells, Dr. Baker
recommends having the well tested to see if surface water contamination occurs.
If it
does, or if individuals wish to take additional precautions, Dr. Baker said
having a disinfection system installed is a good idea.
If you
have severe stomach ulcers, see your doctor for treatment regardless of your
water supply.
Persons
with ulcers are more likely to develop stomach cancer and other cancers of the
intestinal track, and great diligence is advised to those who develop ulcers.
https://www.freedrinkingwater.com/water_health/health2/municipal-water-supply-bacteria-ulcers.htm
https://www.freedrinkingwater.com/water_health/health2/municipal-water-supply-bacteria-ulcers.htm
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