This website uses cookies to ensure you have the best experience. Learn more

Amebiasis Essay

1604 words - 6 pages


Amebiasis was first described as a disease by a Russian physician, F.
Losch, in 1875 (Anderson, 3). The history of amebiasis has centered on
the relationship of amebas found in the intestinal tract of mammals
and the role they play in causing disease (4). During the first half
of this century, the study of amebiasis has evolved from a disease
thought to be purely tropical and one that didn't necessarily require
concern to one that is "practically cosmopolitan in its distribution"
worldwide and easily treatable (Anderson, 6-8).

Amebiasis indicates presence of Endamoeba histolytica, a protozoan in
the class Rhizopoda, and it implies that certain invasion of the
intestinal tract, especially the colon and liver, has occurred (MDE,
1). Endamoeba histolytica is a pathogen that is capable of invading
and destroying the host's tissue without the aid of pathogenic
bacteria (Anderson, 8). It is a typically single-celled parasite whose
body consists of cytoplasm, nucleus or nuclei, ingested materials, and
vacuoles (Craig, 13).

Endamoeba histolytica has four stages in its life cycle: the
trophozoite or motile stage, the precystic stage, the cystic stage,
and the metacystic stage (Anderson, 39). The trophic ameba is
especially adapted for life in the tissues of its host. The ameba
passes out of the body of the human host in the feces into the
external environment in its precystic form (39). The cystic form of
the Endamoeba histolytica is the resistant form of the pathogen, and
it exists free in nature (40). The metacystic stage is basically the
reproductive stage, where each nuclei divides into two daughter
nuclei. These small amebas develop into the trophozoite form within a
few hours (40). It is this rapid multiplication of the ameba in the
host which causes various forms of amebiasis in man.

The appearance of amebiasis is world-wide, although it is more
frequently observed in tropical climates (Anderson, 12). The disease
appears in endemic form in Central and South America, the Indies,
Southeast Asia, Africa, Siberia, and the Mediterranean countries (12).
In the United States, incidence of the disease generally ranges from
five to ten percent (Anderson, 12). It has varied during the last few
decades, however, from about .05 percent in a Philadelphia hospital to
about 55.5 percent in a New Orleans orphanage (12).

The protozoan is transmitted from human to human, requiring no
intermediate hosts (Anderson, 12). There are several ways infection is
transmitted. Water is a suitable agent for the transfer of pathogen,
since they are able to remain viable in it for three to five days
(305). When the water supply in any community becomes contaminated
with sewage, lacking proper disposal and treatment, the risk of being
infected with amebiasis increases greatly. High...

Find Another Essay On Amebiasis

When the Bubble Burst Essay

1539 words - 6 pages By the time I arrived state side from my second tour in the Middle East the housing bubble had already burst. I noticed a drastic change in the way that many of my friends and family were living. Several of my friends that worked in real estate had sold their boats and seconds houses. My own stock portfolio had lost a third of its value. My sister and her husband had defaulted on their home mortgage leaving them scrambling for a place to live. I

phase diagram Essay

4456 words - 18 pages Introduction: Chemical equilibrium is a crucial topic in Chemistry. To represent and model equilibrium, the thermodynamic concept of Free energy is usually used. For a multi-component system the Gibbs free energy is a function of Pressure, Temperature and quantity (mass, moles) of each component. If one of these parameters is changed, a state change to a more energetically favorable state will occur. This state has the lowest free energy

Revolutionary Work of Art

1890 words - 8 pages Walter Benjamin emphasizes in his essay, “The Work of Art in the Age of its Technological Reproducibility” that technology used to make an artwork has changed the way it was received, and its “aura”. Aura represents the originality and authenticity of a work of art that has not been reproduced. The Sistine Chapel in the Vatican is an example of a work that has been and truly a beacon of art. It has brought a benefit and enlightenment to the art

Enlightenment Thought in New Zealand Schools

1594 words - 6 pages In this essay I will be looking at how the political and intellectual ideas of the enlightenment have shaped New Zealand Education. I will also be discussing the perennial tension of local control versus central control of education, and how this has been affected by the political and intellectual ideas of the enlightenment. The enlightenment was an intellectual movement, which beginnings of were marked by the Glorious Revolution in Britain

Psychological Egoism Theory

2240 words - 9 pages The theory of psychological egoism is indeed plausible. The meaning of plausible in the context of this paper refers to the validity or the conceivability of the theory in question, to explain the nature and motivation of human behavior (Hinman, 2007). Human actions are motivated by the satisfaction obtained after completing a task that they are involved in. For example, Mother Teresa was satisfied by her benevolent actions and

How Celtic Folkore has Influenced My Family

1587 words - 6 pages Every family has a unique background that influences the way they live and interact with other people. My parents, who emigrated from Ireland to the States with my three brothers in 1989, brought over their own Celtic folklore and traditions that have helped shaped the way our family operates and lives. One aspect of folklore that has helped shape my family dynamic is the Celtic cross—both its background and what role it has played in our lives

Julia Margaret Cameron

1406 words - 6 pages At a time when women were looked upon as being homemakers, wives, mothers and such the late 1850's presented a change in pace for one woman in specific. Photography was discovered in 1826 and soon after the phenomenon of photography was being experimented with and in turn brought new and different ways of photo taking not only as documenting real time, but also conceptualizing a scene in which an image would be taken. Julia Margaret Cameron will

Evaluation of School Improvement

1403 words - 6 pages The evaluation process should be progressive to incorporate overall planning, implement changes, which contribute to success. In order to focus on school climate and norms, the evaluation design must include the students, instructions, and outcomes to improve communication and building-level concerns to be address in this response. School Climate and Social Norms The school principal, other staff leaders, and personnel set the tone and the

Case Study: The Benefits of Animal Testing

1757 words - 7 pages Nine year old Amy has already had a rough start in life. She was born with an abnormal heart that hinders her everyday activities. Amy is unable to keep up with kids her own age because she often tires out easily. As a consequence, she has very little friends and is often alone. Amy is forced to take different medications everyday just to survive. Amy’s life consists of medicine, doctors, and constant hospital visits. However, Amy is due for a

Myth and Magic: Realism in "One Hundred Years of Solitude"

1531 words - 6 pages “He enjoyed his grandmother's unique way of telling stories. No matter how fantastic or improbable her statements, she always delivered them as if they were the irrefutable truth” (Wikipedia, 2011). Experiences are particular instances of one personally encountering or undergoing something and in these moments of time life changes for the best or the worst and memories are formed. These recollections such as riding your first bicycle, going to

Adiponectin: a Novel Indicator of Malnutrition and Inflammation in Hemodialysis Patients

2384 words - 10 pages Objective Protein-Energy malnutrition (PEM) and inflammation are common and overlapping conditions in hemodialysis patients which are associated with increased risk of morbidity and mortality. Adiponectin is an adipocytokine which is exclusively produced by adipose tissue. Few studies in hemodialysis patients have demonstrated that serum levels of adiponectin were significantly higher in malnourished patients compared to well-nourished ones. The

Similar Essays

The Common Diarrheal Disease: Amebiasis Essay

1408 words - 6 pages One of the most common diarrheal diseases is amebiasis, caused by the parasitic protist Entamoeba histolytica that affects 50 million people leading to 100,000 deaths world wide a year. One of the most common diarrheal diseases is amebiasis, caused by the parasitic protist Entamoeba histolytic. Transmitted by the fecal-oral route, ingestion of infected cyst form occurs through contaminated food and water. Casual Agent E. histolytica is a

Entamoeba Histolytica Essay

769 words - 3 pages Entamoeba histolytica General Description Entamoeba histolytica is an ameba that feeds on cells in the human colon. It is the cause of amebic dysentery (bloody diarrhea) as well as colonic ulcerations. The infection is also referred to as amebiasis. If the organisms spread throughout the body via the bloodstream they may cause abscesses in the liver or, less frequently, other organs. Morphology The organism has two forms. The cyst is

Amebicides, Antibiotics And Antivirals (+Definitions Of Well Known Diseases)

6316 words - 25 pages JUnitTask 1 Amebicides Antibiotics Antivirals What they are? Amebicides are agents that destroy amebae infections, especially those that cause amebiasis. Antibiotics are a treatment that destroy or slow down the growth of bacteria. Antivirals are agents that stop the growth and reproduction of viruses. What diseases they treat? Amebicides treat a disease called amebiasis; amebiasis is an intestinal illness that is commonly

Nursing Care Plan Essay

8217 words - 33 pages , tachycardia, edema HEMA: Thrombocytopenia MS: Fractures, osteoporosis, weakness GI: Diarrhea, nausea, abdominal distention, GI hemorrhage, increased appetite, pancreatitis EENT: Fungal infections, increased intraocular pressure, blurred vision Contraindications: Psychosis, hypersensitivity, idiopathic thrombocytopenia, acute glomerulonephritis, amebiasis, fungal infections, nonasthmatic bronchial disease, child *2 yr, AIDS, TB Precautions