Thesis on "Hepatitis"
Thesis 6 pages (2011 words) Sources: 6 Style: MLA
[EXCERPT] . . . .
Hepatitis B is the known as the most serious of the common liver infections in the world. It is estimated that approximately 350 million people are chronic carriers of HBV or the hepatitis B virus in the world and of these more than 250,000 die from liver-related disease each year. (Hepatitis B Overview) The Hepatitis B infection is caused by the hepatitis B virus and it can not only be the cause of serious and chronic liver disease but can "….put people at high risk of death from cirrhosis of the liver and liver cancer." (Hepatitis B: WHO)Hepatitis B should be understood as an infection that is related to the general diagnoses of and category of Hepatitis. Hepatitis generally refers to a condition of the inflammation of the liver. This inflammation can be the result of various disorders of the immune system as well as a result of alcohol abuse. However, Hepatis B. refers specifically to the above mentioned viral infection. (Hepatitis B Overview) The seriousness of this infection is evidenced by the fact that "…about twenty-five percent of adults who become chronically infected during childhood later die from liver cancer or cirrhosis (scarring of the liver) caused by the chronic infection." (Hepatitis B: WHO) Another important aspect to consider in this disease is that this virus is estimated by the World Health Organization to be between fifty to one-hundred times more infectious than the HIV or AIDS virus. (Hepatitis B: WHO) It is also known to be a serious occupational hazard for many health workers in regions where this disease is prevalent.
Hepatitis B also varies in terms of its severity and can manifest itself as a mild illness which may last for a few we
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However, the literature also notes that, "About 90-95% of people who are infected are able to fight off the virus so their infection never becomes chronic. Only about 5-10% of adults infected with HBV go on to develop chronic infection." (Hepatitis B) It should also be noted that, "People with chronic HBV infection are called chronic carriers. About two-thirds of these people do not themselves get sick or die of the virus, but they can transmit it to other people." (Hepatitis B)
2. Symptoms
It is estimated that approximately half the people who are infected with the hepatitis B virus have no symptoms. However, the symptoms that are manifested tend to develop with a period of between thirty and one-hundred and eighty days after exposure to the virus. (Hepatitis B Symptoms) These symptoms are often similar to those associated with influenza and this tends to mask the true nature of the illness as many people do not realize that they have hepatitis B The following is a list of the most common symptoms that occur after the initial infection.
Appetite loss
Feeling tired (fatigue)
Nausea and vomiting
Itching all over the body
Pain over the liver
Jaundice
Urine becomes dark in color
Stools are pale in color (grayish or clay colored
(Hepatitis B Symptoms)
1. Transmission and range of the infection
The hepatitis B virus is blood-borne and is transmitted from person to person. The most common transmission agents for the virus are semen and saliva. (Hepatitis B Causes) However it has also been found that, "The virus can be transmitted whenever any of these bodily fluids come in contact with the broken skin or a mucous membrane (in the mouth, genital organs, or rectum) of an uninfected person…" (Hepatitis B Causes) Therefore the most common methods of transmission of the virus are through sexual activity as well as through the sharing of contaminated needles and form an infected mother to her child. (Viral Hepatitis)
In terms of demographics, the United States, hepatitis B is largely a disease of young adults and affects aged 20-50 years. About 1.25 million people are chronic carriers, and the disease causes about 5000 deaths each year. (Hepatitus B) These figures are augmented by the World Health Organization who report that an estimated two billion people throughout the world have been infected by this virus and that approximately 350 million people live with the chronic type of this virus. (Hepatitis B: WHO)
In terms of world regions, China has an endemic problem with hepatitis B, and the disease is also prevalent in many other parts of Asia. It is also mentioned in the literature on this area that, " Most people in the region become infected with HBV during childhood. In these regions, 8% to 10% of the adult population is chronically infected." (Hepatitis B: WHO) High rates of the infection of this virus are also found in South America, particularly in Amazon region. Other areas that are noted for the high level of chronic and serious hepatitis B are the southern parts of eastern and central Europe. (Hepatitis B: WHO) Figures for other regions of the word include the following: the Middle East and Indian sub-continent, which have an estimated two to five percent of the general population who are infected and the figure is less than one percent of the population in Western Europe and North American. (Hepatitis B: WHO)
Those who are most at risk of being infected by this virus are dependent on certain variables. One variable that is alarmingly consistent is that the age that a person becomes infected usually determines the severity and the chronic nature of the infection. It has been found that those young children who are infected are most likely to develop chronic form of this disease. This is borne out by studies that have determined the following statistics.
About 90% of infants infected during the first year of life develop chronic infections; 30% to 50% of children infected between one to four years of age develop chronic infections. About 25% of adults who become chronically infected during childhood die from HBV-related liver cancer or cirrhosis.
(Hepatitis B: WHO)
It is also interesting to note that most of the adults who are infected with the hepatitis B virus recover completely within a period of six months. (Hepatitis B: WHO)
Other factors that affect the chances of being infected by the chronic form of the virus are:
people who were born to a mother with hepatitis B
people who are exposed to blood or body fluids at work people on hemodialysis
people who have had more than one sex partner in the last 6 months or have a history of sexually transmitted disease injection drug users men who have sex with men
(What I need to know about Hepatitis B)
However, many developed countries, such as Western Europe and North America, shoe very different patterns of transmission. In these countries"… the majority of infections & #8230; are transmitted during young adulthood by sexual activity and injecting drug use. "(Hepatitis B: WHO)
1. Diagnosis, treatment and costs
Hepatitis B is mainly diagnosed by means of blood tests. These tests can also indicate the severity of the infection and wether it is chronic or not. A common recommendation is that a liver biopsy should be taken if the blood test indicates chronic hepatitis B (What I need to know about Hepatitis B)
In terms of prevention a vaccine has been available since 1982 and has been found to be "…ninety-five percent effective in preventing HBV infection and its chronic consequences…" (Hepatitis B: WHO) However there is no specific treatment protocol for this disease. Doctors recommend rest and a diet that is high in protein and carbohydrates. As notes above, while most adults with this virus will recover after a bout of acute hepatitis B, there is a certain percentage that will develop the chronic from of this disease. In this respect there are a number of drugs that have been found to be relatively effective. These include Alpha interferon and lamivudine, which has been effective in about forty percent of cases.
However, as one report states, "…however, approximately 15 to 25% of chronic cases develop severe liver disease and death." (Hepatitis B: Brown.Edu.) If the chronic infection worsens and causes liver failure, then the only possibility to save the patient is surgery and a liver transplant.
The costs associated with the treatment of this disease are entirely dependent on the type of treatment that is undertaken. The treatment strategy that prescribed only rest and diet is obviously the cheapest. The most expensive treatment is the use of drugs like interferon and the adefovir monotherapy… READ MORE
Quoted Instructions for "Hepatitis" Assignment:
please discuss the symptoms, effects and treatment of this disease. the population it effects. treatment/cure and costs associated with treatment. how it is spread.
How to Reference "Hepatitis" Thesis in a Bibliography
“Hepatitis.” A1-TermPaper.com, 2009, https://www.a1-termpaper.com/topics/essay/hepatitis-b-known/363380. Accessed 4 Oct 2024.
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