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What
are Parasitic Infections
A
parasite is an organism that grows, feeds, and is sheltered on or
in a different organism while contributing nothing to the survival
of its host. They refer to a huge class of micro-organisms that
include worms, flukes and amoebas. A parasite can invade our body
and interfere with the normal physiological processes. Parasitic
infections can be quite debilitating and chronic. Many infections
cause nutrient deficiencies due to poor digestion and malabsorption;
as well as diarrhoea-- diarrhoeal diseases caused by parasites constitutes
the single greatest world wide cause of illness and death.
Most infections
are acquired through the ingestion of contaminated food and water;
although some infections such as malaria can be acquired though
insects. Many animals can be host to some organisms without manifesting
a disease or any problems; but humans are the primary host
Several different
organisms create infection, although for the purpose of this article
we will focus on intestinal infections. Some organisms that can
cause intestinal infections are Entamoeba histolytica (causes ambiasis),
Giadia lambia (causes Giardisis), Enterobius (causes pinworm or
threadworm infections), Necator americanus and Ancylostoma (both
cause hookworm infections), Tricuris trichiura (causes whipworm
infection) and Cryptosporidium (causes cryptosporidiosis). Giardia
lamblia can cause acute or chronic diarrhoea and sometimes fat and
vitamin malabsorption. It is now the commonest cause of water-borne
diarrhea in the world with vast reservoirs in humans, wild and domestic
animals and in rivers and water supplies. Although more common in
third world countries with poor sanitation it is increasingly being
found in developed countries including New Zealand. Cryptosporidium
is now recognized as a cause of acute gastroenteritis, particularly
in children.
Symptoms
of Parasitic infections
The most common symptoms
of parasitic infections are abdominal pain and moderate to severe
diarrhoea, but there is a wide range of acute and chronic effects.
The symptoms can range: mineral imbalances, abnormal thyroid function,
intestinal gas, blood sugar imbalances, bloating, jaundice, fluid
build-up, dizziness, fuzzy thinking, hunger pains, poor digestion,
allergies, sensitivity to touch, weight changes, and symptoms of
pernicious anaemia. Nausea, intestinal gas, lack of appetite and
cramping can lead to fatigue and weakness. Amoebic infestation can
occasionally involve problems with the liver, with right sided pain,
weight loss, and fever with a risk of liver abscesses penetrating
the lungs. Many infections of flukes and worms are without symptoms
but some will experience anal itching and scratching, disturbed
sleep, occasional bed-wetting in younger children. However, in some
case if left untreated, humans infected with roundworm eggs or hookworm
larvae from animals can develop "larva migrans" syndrome,
which can have quite serious consequences such as epilepsy, spinal
cord damage, liver disorders - even blindness
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Diagnosis
and Pharmaceutical Interventions
The assistance of
a physician is required to help diagnose and treat any suspected
intestinal parasite infection. Parasites must be isolated and identified
for a correct diagnosis to be made. Testing of the stool is done
via a parasitology test, sometimes called and O& P, which stands
for Ovum and Parasite. It looks specifically for organisms and the
eggs or ovum. It is more through when performed 3 times, as many
parasites do not shed at even intervals- one days sample may produce
negative results while the following days sample may be positive.
Pharmaceutical
medications
Some common medications
used that may be used for giardisis and ambiasis are metronidazole
(flagyl), ornidazole (tiberal), and tinidazole (dyzole). Often they
will need to be repeated to be effective. The most common side effects
are headache, nausea, dry mouth, and a metallic taste. Vomiting,
diarrhea, and abdominal distress occasionally are experienced
For infestations
caused by worms or flukes anthelmintics are prescribed e.g. mebendazole
(vermox) or pyrantel (conbantrin). With using these drugs abdominal
pain and diarrhoea can occur transiently during therapy. This reaction
may be a response to expulsion of the worms following treatment.
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Lifestyle
and Dietary Modifications
When travelling
in developing countries, people should avoid drinking tap water
and eating uncooked foods, foods prepared by street vendors, ice,
and fruits that cannot be peeled. All of these are potential sources
of parasitic infection. People should not drink untreated stream
water while camping, as it is frequently almost invariably contaminated
with Giardia. Undercooked fish, meat and poultry can also contain
parasites.
Children are more
likely to get infected with several different types of parasites
because of their close social interaction during play, playing with
animals or in dirt and generally less personal hygiene (hand washing
etc.) which contribute to rapid transfer of the infection. Keeping
the space where animals live and use clean may reduce some transfer.
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Nutritional
Factors Shown to be Beneficial
Neem (Azadirachta
indica)
Neem is an ayurvedic herb that also is very effective in treating
infections of the digestive tract as well as skin conditions.
Dose: Neem 500 mg twice a day
Berberine
containing herbs
Berberine is derived from several plants, including barberry (Berberis
vulgaris), Oregon grape (Berberis aquifolium), goldenseal (Hydrasis
Canadensis), and goldthread (Coptis chinensis). Some clinical trials
have shown that berberine can be used successfully to treat giardia
infections.
The amount required is approximately 200 mg
TID for an adult—a level high enough to potentially cause
side effects, such as diarrhoea. Therefore, berberine should not
be used without consulting a healthcare provider.
ProBiotic
supplementation
Supplementation of the friendly bacteria that normally live in the
colon can help replenish the area, especially if it has been affected
by a history of antibiotic use. Lactobacillis acidophilus, Lactobacillus
GG, Bifidobacterium bifidus and Saccharomyces boulardii are examples
of good bacteria that can be used therapeutically. Lactobacilli
and bifidobacteria maintain a healthy balance of intestinal flora
by producing organic compounds—such as lactic acid, hydrogen
peroxide, and acetic acid.
Dose: One to two billion colony forming units
(CFUs) per day of acidophilus is considered to be the minimum amount
for the healthy maintenance of intestinal microflora.
Pau D’arco
(Tabebuia impetiginos)
Pau D’arco has been used in South America for centuries for
the treatment of infections and even cancers, and it is antiparasitic
actions against various parasites.
Dose: 500 mg twice a day
Chinese
wormwood or sweet Annie (Artemisa annua)
This herb has been are traditionally used for treatment of parasites,
numerous case reports and preliminary studies from the late 1800s
and early 1900s have used it with success.
Dose: 500 mg 3 times day
Pumpkin
seeds (Cucurbita pepo)
The seeds of pumpkin have purported effects against tapeworms. Given
their safety, they are often recommended as an addition to other,
more reliable therapies. In Germany, 200–400 grams are commonly
ground and taken with milk and honey, followed by castor oil two
hours later.
Caution: Any herb
potent enough to kill parasites could potentially harm the person
taking it. Although some of these herbs have antiparasitic actions
in vitro. Safe and proper use requires the skills of an experienced
practitioner.
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Recommended
NaturalMeds Products for Parasitic Infections
Pau
D’Arco
Pau d'arco has been used widely in South America since ancient times.
Pau d'arco supports the immune system and has anti-fungal properties.
Here Pau d’arco is combined with beta carotene and vitamin
C for a stronger immune system effect.
Dose: 2 tablets three times a day Pack size:
50 tablets
Acidophilus
300 mg
Acidophilus supports colon health by altering the microflora ecology
to favour "friendly" flora. Acidophilus-Stabilized Culture
contains 3 billion colony forming units.
Dose: 1-2 capsules a day away from meals Pack
size: 60 caps
Oil
of Oregano
Oregano oil is a powerful antimicrobial and antifungal herbal preparation.
It is standardized to contain 70% carvacrol, the active constituent
in the oil, and is one of the strongest on the market.
Dose: 1 to 3 capsules a day Pack size: 30
capsules
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