This guy has some good stuff on Map http://www.daleroose.com/health/map/
Mycobacterium avium paratuberculosis (MAP) is a bacterium that in dairy cows and numerous other mammals, causes Johne's (pronounced "yo-nees") disease—a
contagious, slowly progressive, and usually fatal infection centered
around the small intestines. The infection is spread when an animals
ingests milk or *** from an infected animal, or the bacteria is
passed to an offspring in the womb.
Once a calf swallows contaminated milk or ***, it passes to the
ileum where macrophages are released by the immune system to fight the
infection. Unlike other bacteria that are engulfed by macrophages and
marked to be killed by other cells of the immune system, MAP bacteria
make a home in macrophages where they thrive.
Researchers at the University of Liverpool recently discovered that
MAP releases a molecule that causes an immune deficiency preventing
macrophages of the immune system from killing E. coli—a species of
bacteria commonly found in the intestines but normally kept in check by
the immune system.
The immune system reacts to the infection and releases more
macrophages but rather than kill the MAP bacteria, they provide a
hospitable environment for MAP reproduction. The immune system also
releases cytokines which cause inflammation of the intestines and
malabsorption of nutrients.
Ruminants--animals that regurgitate undigested food--are more
susceptible to MAP infection than non-ruminants, possibly because the
MAP bacteria is spread with regurgitated food.
Because MAP reproduces extremely slowly, intestinal inflammation
usually continues for years through periods of relative remission and
relapse. Damage to the intestines accumulates usually until the animal
grows older and dies.
Although MAP does not generally reproduce in the external
environment, it can survive for more than a year. Cattle may become
infected from *** in the pasture or the bacteria may be transferred
to the calf in the womb. Younger cattle are generally more susceptible
to infection than older cattle.
There are no apparent symptoms in the early stages of infection and
no reliable test for infection. Since MAP is not considered a human
pathogen, only about one in four herds in the U.S. are screened for MAP
even though MAP is found in about three in four herds screened.
Seemingly healthy cattle with MAP infection produce milk for their
young and for human consumption as milk or other dairy products. Some
infected cattle that show signs of disease are slaughtered and sold for
consumption as beef or beef byproducts while those that show no signs
of disease are treated as healthy animals..
Most common species of bacteria that might appear in milk are killed
by pasteurization as generally practiced in the U.S., but MAP is the
bacteria that's too tough to die (like the town of Tombstone, Arizona).
Studies have found viable MAP bacteria in samples of milk sold at
retail.
MAP bacteria cause intestinal disease not only in cattle but also in
other species including goats, sheep, bison, deer, elk, and non-human
primates and its ability to cross species among mammals is well
establised. So what about humans?
Paratuberculosis in Humans
MAP bacteria is known to cause infection in persons with Acquired
Immune Deficiency Syndrome (AIDS), though it may be identified as part
of Mycobacterium avium complex (MAC). It might be diagnosed broadly as
Mycobacterium other than Tuberculosis (MOTT), as Nontuberculous
Mycobacterium (NTM), or as Hot Tub Lung. The source of identified
infection in AIDS patients is sometimes found to be contaminated water
including tap water where Mycobacteria can live as long as one year.
The lungs are a common site for these infections.
While MAP (or MAC) is known to be a common pathogen in persons with
AIDS, less has been documented about MAP in paitients with other
secondary immune deficiencies and with primary immune deficiencies.
Disregarding an overwhelming body of evidence suggesting that
paratuberculosis causes intestinal disease in humans, the medical
profession has maintained faith that humans are not susceptible to the
effect that paratuberculosis has on other species.
Crohn's Disease (CD) in humans is an inflammatory disease that can
affect any part of the gastrointestinal tract but most commonly affects
the ileum. CD has traditionally been thought to be strictly an
autoimmune diseases but the causal mechanism remains controversial.
The ileum is the only part of the gastrointestinal tract that
contains Peyer's Patches which are a part of the immune system that
provides protection from pathogenic organisms. Bacteria such as
paratuberculosis encounter macrophages in Peyer's Patches and
paratuberculosis infects macrophages. Cells in Peyer's Patches also
function to identify invading organisms to initiate an immune response
against that specific organism. Part of that immune response includes
the release of cytokines which initiate inflammation.
In Crohn's Disease, the inflammation initiated by an immune response
causes scarring and thickening of the wall of the intestines. Symptoms
typically include abdominal pain, diarrhea, and malabsorption of
nutrients. Since Vitamins B12 and D are primarily absorbed in the
ileum, inflammation limited to the ileum can cause malabsorption of
these vitamins even though other nutrients may be absorbed. Thickening
of the intestinal wall can cause blockages. Fistulas—a sort fo black
hole connecting to other organs—can also form. The damage varies
between individuals so the symptoms vary as well. Weight loss, for
example, is common in both Johne's Disease in cattle and Crohn's
Disease in humans, but not all cattle with Johne's Disease lose weight
nor do all humans with Crohn's Disease. Crohn's typically follows a
course of remission and relapse.
Treatments for Crohn's Disease typically consists of drugs that
reduce inflammation and suppress the immune system, antibiotics for
opportunistic infections (none effective against mycobacteria),
anti-diarrheals, and nutrition supplementation to treat malabsorption.
Finally, severely damaged sections of the intestines are removed
surgically in two-thirds to three-quarters of patients.
Some people are genetically predisposed to Crohn's; people of Jewish
heritage are at increased risk; and African Americans are at decreased
risk of developing Crohn's.
The prevalence of Johne's Disease in the United States has been
increasing exponentially since its first discovery in 1908 and at the
current rate, approximately 90% of herds will be infected by 2020. The
incidence of Crohn's Disease has risen steadily over the past fifty
years. Crohn's was first identified in 1932.
Crohn's Disease, Johne's Disease, and interestingly Multiple
Sclerosis are more common in colder, wetter climates typically found in
northern latitudes where there is less sunlight than near the equator.
Increased presence of both paratuberculosis and E. coli have been
found in intestinal tissues from patients with Crohn's Disease, which
could be explained by the discovery that paratuberculosis releases a
molecule that prevents macrophages from killing E. coli.
Notes
- MAP — Family: Mycobacteriaceae; Genus: Mycobacterium;
Species: M. avium; Subspecies: paratuberculosis. "myco-" refers to a
waxy substance in the cell wall, not to fungus.
- Tuberculosis is caused by Mycobacterium tuberculosis which, like MAP, is a member of the family Mycobacteriaceae.
Here is a little clip on a study in 2004
| Tuesday, August 10, 2004 |
 |
M. paratuberculosis found in U.S. milk.
Viable (living) M. paratuberculosis
organisms (the mycobacterium that causes Johne's disease), were found
in low numbers in commercially pasteurized milk purchased from stores
in California, Minnesota and Wisconsin according to research conducted
by Dr. Jay Ellingson, Marshfield Clinic Laboratories, Marshfield, WI,
USA . Of 702 samples tested, 2.8 percent contained viable M. paratuberculosis
organisms. This study's results agree with previous research conducted
in Great Britain and were presented recently at the International
Association for Food Protection conference. The full study will be
presented at the International Colloquium on Paratuberculosis, Aug. 14
- 18, Copenhagen, Denmark ( http://www.8icp.dk/ ). |
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There are some big words in this one so don't let that scare you off. The important parts anyone can understand...
Causation of Crohn's disease by Mycobacterium avium subspecies paratuberculosis.
St George's Hospital Medical School, London, United Kingdom. jhermon@sghms.ac.uk
Mycobacterium
avium subspecies paratuberculosis (MAP) is a member of the M avium
complex (MAC). It differs genetically from other MAC in having 14 to 18
copies of IS900 and a single cassette of DNA involved in the
biosynthesis of surface carbohydrate. Unlike other MAC, MAP is a
specific cause of chronic inflammation of the intestine in many animal
species, including primates. The disease ranges from pluribacillary to
paucimicrobial, with chronic granulomatous inflammation like leprosy in
humans. MAP infection can persist for years without causing clinical
disease. The herd prevalence of MAP infection in Western Europe and
North America is reported in the range 21% to 54%. These subclinically
infected animals shed MAP in their milk and onto pastures. MAP is more
robust than tuberculosis, and the risk that is conveyed to human
populations in retail milk and in domestic water supplies is high. MAP
is harboured in the ileocolonic mucosa of a proportion of normal people
and can be detected in a high proportion of full thickness samples of
inflamed Crohn's disease gut by improved culture systems and IS900
polymerase chain reaction if the correct methods are used. MAP in
Crohn's disease is present in a protease-resistant nonbacillary form,
can evade immune recognition and probably causes an immune
dysregulation. As with other MAC, MAP is resistant to most standard
antituberculous drugs. Treatment of Crohn's disease with combinations
of drugs more active against MAC such as rifabutin and clarithromycin
can bring about a profound improvement and, in a few cases, apparent
disease eradication. New drugs as well as effective MAP vaccines for
animals and humans are needed. The problems caused by MAP constitute a
public health issue of tragic proportions for which a range of remedial
measures are urgently needed.
PMID: 10888733 [PubMed - indexed for MEDLINE]
It is all over the World and nobody is talking about it!
Mycobacterium avium ssp. paratuberculosis in foods: current evidence and potential consequences
IRENE R
GRANT*Department
of Food Microbiology, Queen's University of Belfast, Agriculture and
Food Science Centre, Newforge Lane, Belfast BT9 5PX, Northern Ireland,
UK
Copyright © 2006 Society of Dairy Technology
KEYWORDS
Crohn's disease • Milk •
Mycobacterium avium ssp. paratuberculosis • Pasteurization • Vehicles of transmission
Mycobacterium avium ssp. paratuberculosis (MAP),
the cause of Johne's disease in cattle, sheep and goats, may have a
role in Crohn's disease in humans. Animals with Johne's disease shed
viable MAP in their milk and faeces. The organism is also widely
disseminated in the blood and tissues of infected animals.
Consequently, transmission to humans via consumption of animal-derived
foods is a distinct possibility. Milk, other dairy products, beef and
water have been identified as possible food vehicles of transmission.
To date, viable MAP has been cultured from raw cows', sheep and goats'
milk, retail pasteurized cows' milk, and some retail cheeses in several
countries during recent studies. MAP has not been isolated from retail
beef to date, although limited testing has been carried out. The public
health consequences, if any, of low numbers of viable MAP being
periodically consumed by susceptible individuals are uncertain. An
association between MAP and Crohn's disease is not proven, but neither
can it be discounted on the basis of current evidence. A precautionary
approach is therefore warranted in relation to the existence of MAP in
food, and action is needed to reduce the prevalence of Johne's disease
in the cattle population worldwide, in order to minimize public
exposure to this potential human pathogen.
Here is a little Intro to the MAP Virus as posted on a site setup up by people suffering from MAP..http://www.crohns.org/map_food/index.htm
Introduction
Mycobacterium avium subspecies paratuberculosis (MAP),
which causes Johne's Disease in many species of ruminants, is endemic
in the food animal herds of almost every developed country. According
to a study conducted by the USDA in 1996, in the United States, between
20% and 40% of dairy cattle herds are infected with MAP, resulting in economic losses of at least US$1.5 billion each and every year.
(Results of a new USDA survey will be published in 2003 based on
data collected in 2002. With Johne's
disease increasing at an alarming rate, undoubtedly the new figures will be higher,
perhaps significantly higher, than those in 1996.)
Since MAP is not classified as a human pathogen, meat, milk and other products from animals infected with MAP may be continually entering the human food chain. There is a wealth of evidence which appears to indicate that MAP
is capable of surviving the food
processing methods that we employ to protect us from disease, such as cooking
and pasteurization. This scientific evidence is thoroughly reviewed and
discussed in the MAP in Dairy Products,
MAP in Beef Products, and
Marshfield Clinic Study sections of our website.
MAP as a Food Safety Problem
in the U.S.
Concerns about MAP and the scientific studies which suggest a
connection to Crohn's disease in humans raise extremely grave concerns about
food safety.
What are the chances that live MAP is in our food? It is an
undisputed scientific fact that live MAP is excreted in the milk of
infected cattle. Terrifyingly enough, scientific
studies published in peer-reviewed journals have determined that MAP
may be capable of surviving U.S. pasteurization standards. And,
scientists have levied significant criticism at the one study that
disagrees with the other studies, citing a misinterpretation of data by
the scientists that conducted the study. (See the MAP in Dairy
Products section for detailed information.)
As a bit of history, in 1993, the first scientific study was published
indicating that MAP may survive pasteurization standards used in the U.S.
This study was ignored by federal agencies responsible for food safety in the
U.S.
Much later, in 1998 when University of Wisconsin researchers published their
findings that MAP was able to survive current U.S. pasteurization standards,
this study was again ignored by U.S. Federal Agencies cognizant of food safety.
All in all, during the period 1993 through 2000 -- seven long years -- nine (9)
scientific studies came in from the U.S. and around the world which suggested
that MAP may survive current U.S. pasteurization standards/practices, and
all of them were tossed to the side, ignored by cognizant U.S. Federal Agencies
such as USDA (U.S. Department of Agriculture) and FDA (Food and Drug
Administration).
In May of 2002, a study was published, entitled
"Incidence of Mycobacterium paratuberculosis
in Bulk Raw and Commercially Pasteurized Cows' Milk from Approved Dairy
Processing Establishments in the United Kingdom" (Grant,
I.R.; Ball, H J.; Rowe, M.T. Applied and Environmental
Biology, May 2002, p. 2428-2435, Vol. 68. No. 5).
Results from this study confirmed that MAP survives pasteurization standards
used in the UK, pasteurization standards which equal or exceed those used in the U.S.
Regardless, despite MANY pleas from PARA since mid 1997, the
USDA
and FDA have not taken measures to exert the precautionary principle in
determining whether indeed the food we give our children is free from
contamination with MAP.
A Recent Piece you may have seen in the papers or on the web...
Study finds bacteria-infested showers
by Emily Clever / STAFF WRITER
12 days ago | 576 views | 0

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Every morning, showerheads spray bacteria all over their unsuspecting owners.
Mycobacterium
avium, a bacteria in the same genus as tuberculosis, has been found in
showerheads across the nation, according to new research by the
Proceedings of the National Academy of Sciences.
“Mycobacterium is a common bacteria in the environment,” said Mark Liles, a professor of microbiology.
Fortunately
for humans, this bacteria primarily affects birds, said Kirby
Farrington, coordinator of the microbiology teaching lab at Auburn
University.
L. pneumophila, a germ that causes Legionnaires’ disease, was also found in the study, but was incredibly rare.
Mycrobacerium can be found worldwide and in common matter such as soil, water, animals and food.
They enter the human body via breathing or eating and infrequently cause infection.
The bacterium forms a biofilm, a colony of bacteria that adheres together.
Biofilms
are common, as they grow in warm, moist climates such as at the bottom
of rivers and streams, boat hulls and the interiors of pipes in
buildings.
But while it seems Auburn’s climate is perfect for a bacterial infestation, there may be no reason to panic.
“Certainly
many microorganisms favor warm, humid conditions, though I don't know
that we are at any higher risk being in the South,” Liles said.
Dr.
Shannon Waters of Greater Mobile Urgent Care said there has not been an
outbreak related to mycobacterium or any water-based bacteria found in
showerheads.
“If you are at high risk of infection due to a
pre-existing medical condition such as AIDS or other immune
dysfunction, then you are advised to reduce your risk of potential
infection,” Liles said.
Farrington said an opportunistic pathogen is any microorganism that can cause disease if given the right conditions and chance.
“Keep
in mind that every time you breathe, you are inhaling tens of thousands
of bacteria,” Liles said. “We are literally living within a sea of
microorganisms, the vast majority of which are not pathogenic. So an
increase in the number of bacteria within a showerhead should not be
undue cause for alarm.”
Farrington said a subspecies of
mycobacterium avium can cause paratuberculosis, also known as Johne’s
disease, which resembles tuberculosis in the way it affects the human
body.
Waters said mycobacterium causes other infections as well,
such as “walking pneumonia,” a less severe community acquired version
of pneumonia.
Mycobacterium avium can be killed by most
sanitizers, but some of the physiological characteristics of the
bacteria make it resistant to sanitizers to a certain degree.
But once showers are infected, the bacteria can be hard to kill.
“Mycobacterium
avium is resistant to most of the antituberculosis drugs, but some of
the new macrolide antibiotics for example, azithromycin or
clarithromycin have shown antibiotic activity against this bacterium in
humans,” Liles said.
Liles does not think Auburn students should be concerned with bacteria in their showers.
“As
Auburn University students are mostly young and healthy,” Liles said.
“They are more likely to be at risk from spreading infectious agents to
each other.”
According to health.com, changing and cleaning the
showerhead once a year with an antibiotic solution once a year will
prevent bacterial growth
So anyway that was a brief overview of the situation...There is plenty of more stuff on this...There was a study done just a couple of years ago here in the US and they found on average 7% of the Retail Milk in the Sampling had live MAP Virus in it...this was milk that had been pastuerized...they have since increased the Pastuerization times to help but it is disputed whether or not the new technique is effective...This is REAL...So all of you conspiracy freaks here is a real one...latch on to this one and save some lives! Oh and by the way...I am have first hand knowledge of what this virus can do to a person...I am currently taking care of a loved that is dealing with this...although the Virus has won in this case maybe if enough of us start to talk about it something can be done to spare the next generation from infection with this deadly virus...And here is how it effects the Market...There is a company Called Salix Phama that produces a drug called Xifaxan...this drug has been nothing short of a Miracle Drug for my loved one. We were prescribed it off label...the drug was just recently approved to treat Hepatic Encephalopy (Dementia) which is what it was used for in My loved ones case...As I said it is a Miracle Drug...This Drug gave us at least 18 months of Quality time which otherwise would have been basically Hell...The market for this drug is Huge and Salix is going to make a fortune...this last year sales are up dramatically and the drug was just approved for this use...The symbol for this company is SLXP....This will be a Billion Dollar drug for this company in just a few years...if not sooner...