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Prevention of Hepatitis A Using Vaccine

The vaccine against hepatitis A (Hepatitis A Vaccine) is the most effective means of preventing infection of hepatitis A virus (HAV). The hepatitis A vaccines provides 94% to 100% protection if you have two shots of vaccine.

Immunization with the hepatitis A vaccine against hepatitis A is recommended for:
- All children from age 1. Two separate doses are given at least 6 months apart. The United States Centers for Disease Control and Prevention made this recommendation in 2006. Many children and adolescents have not had the hepatitis A vaccine.
- Adolescents and children who have not had the vaccine against hepatitis A and are in the following situations:

• An epidemic of the disease has occurred recently.
• They live in a community or state that has established routine immunization because the disease occurs more frequently than in other areas.

- People with health travel, work or lifestyle puts them at risk of exposure. This includes:

• Those planning a trip to a foreign country where sanitary conditions are poor and hepatitis A is common.
• People who use illegal drugs.
• Men who have sex with men.
• People who work with monkeys that are infected and those who work with the virus in a research context.
• People with long-term (chronic) liver disease.
• Who are awaiting or have undergone a liver transplant.
• Persons with hemophilia or related disorders in blood clotting.

A combination hepatitis vaccine (Twinrix vaccine) that prevents hepatitis B and hepatitis A is available for persons over 18 years.

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The Most Frequent Cirrhosis Causes

There are some causes of cirrhosis, such as alcohol, non-alcoholic fatty liver disease (NAFLD), cryptogenic cirrhosis, chronic viral hepatitis, Inherited disorders, primary biliary cirrhosis, primary sclerosing cholangitis, autoimmune hepatitis, biliary atresia, and cardiac chronic heart failure as cirrhosis causes problems.

• Alcohol cause hepatic cirrhosis

Alcohol is a very common cause of cirrhosis, especially in the western world. The development of cirrhosis depends on the amount and regularity of alcohol consumption. Chronic high levels of alcohol consumption for liver cell damage. Thirty percent of people drinking daily for at least eight to sixteen ounces of hard liquor or the equivalent of fifteen or more years will develop cirrhosis. Alcohol causes a range of diseases of the liver to be simple and uncomplicated fatty liver (steatosis), to more severe fatty liver with inflammation (nonalcoholic steatohepatitis or hepatitis), cirrhosis.

• Non-alcoholic Fatty Liver Disease (NAFLD)

NAFLD, better known as Non-Alcoholic Fatty Liver Disease refers to a broad spectrum of liver diseases such as alcoholic liver disease, ranging from simple steatosis to non-alcoholic steato-hepatitis (NASH) to cirrhosis. All stages of NAFLD have in common the accumulation of fat in liver cells. The term is used because NAFLD nonalcoholic occurs in people who do not consume excessive amounts of alcohol, however, in many respects, the microscopic image of non-alcoholic fatty liver is similar to what can be seen in liver disease caused by excessive alcohol consumption. Is NAFLD associated with a condition called insulin resistance, which in turn is associated with metabolic syndrome and type 2 diabetes mellitus. Obesity is a major cause of insulin resistance, metabolic syndrome, type 2 diabetes. NAFLD is the most common liver disease in the United States and is responsible for 24% of all liver diseases. In fact, the number of livers that are transplanted from non-alcoholic fatty liver, cirrhosis is related to the increase. The public health administrators that the current epidemic of obesity dramatically increases the development of nonalcoholic fatty liver and cirrhosis in the population.

• Cryptogenic cirrhosis (cirrhosis due to unidentified causes)

Cirrhosis due to unidentified causes, better known as Cryptogenic-Cirrhosis is a common reason for liver transplantation. It’s called cryptogenic cirrhosis because for years doctors have been unable to explain why a proportion of patients with cirrhosis developed. Doctors now believe that cryptogenic cirrhosis due to NASH (nonalcoholic steatohepatitis) caused by long-standing obesity, type 2 diabetes and insulin resistance. The fat in the liver of patients with NASH is estimated to disappear with the onset of cirrhosis, and this makes it difficult for physicians to establish the link between NASH and cryptogenic cirrhosis long. An important clue leading to NASH cryptogenic cirrhosis is the discovery of a large number of Nash in the new liver of patients undergoing liver transplantation in cryptogenic cirrhosis. Finally, a French study suggests that patients with NASH have a similar risk of developing cirrhosis patients with long-term infection with hepatitis C. (See below). However, it is expected that progression to cirrhosis from NASH to be slow and the diagnosis of cirrhosis is usually performed in patients in the sixties.

• Chronic Viral Hepatitis

Viral hepatitis chronic is a condition where chronic hepatitis B or chronic hepatitis C affects the liver for years. Most patients with viral hepatitis develop chronic hepatitis and cirrhosis. For example, most patients infected with hepatitis A recover completely within a few weeks without developing chronic infection. However, some patients infected with hepatitis B and most patients infected with hepatitis C develop chronic hepatitis, which in turn leads to progressive liver disease leading to cirrhosis and sometimes liver cancer.

• Inherited (genetic) disorders

Inherited genetic disorders that cause the accumulation of toxic substances in the liver, leading to tissue damage and cirrhosis. Examples include the abnormal accumulation of iron (hemochromatosis) or copper (Wilson’s disease). In hemochromatosis, patients inherit a tendency to absorb too much iron from food. Over time, iron accumulation in various organs in the body causes cirrhosis, arthritis, heart muscle damage leading to heart failure, and testicular dysfunction causing loss of sexual appetite. Treatment aims to prevent organ damage from the removal of iron in the body by bleeding (blood removal). In Wilson’s disease, is an inherited abnormality in one of the proteins that control copper in the body. Over time, copper accumulates in the liver, eyes and brain. Cirrhosis, tremor, psychiatric disorders and other neurological disorders occur if the condition is not treated quickly. Treatment with oral medication that increases the amount of copper from the body in urine.

• Primary biliary cirrhosis (PBC)

PBC, better known as Primary Biliary Cirrhosis is a liver disease caused by abnormal immune system that is predominantly female. Abnormal immunity in PBC causes chronic inflammation and destruction of small bile ducts in the liver. The bile ducts are the passages in the liver, bile travels to the intestine. Bile is a liquid produced by the liver that contains substances necessary for digestion and absorption of fat in the intestine, and other compounds that are waste products such as bilirubin, a pigment. (Bilirubin is produced by the breakdown of hemoglobin in red blood cells.). Along with the gallbladder, bile ducts form the biliary tract. In the PBC, the destruction of small bile duct blocks the normal flow of bile into the intestine. As the inflammation continues to destroy more of the bile ducts, also extends to destroy liver cells nearby. That the destruction of hepatocytes of products, the scar tissue (fibrosis) forms and propagates in the areas of destruction. The combined effects of ongoing inflammation, scarring, and the toxic effects of waste accumulation leads to cirrhosis.

• Primary sclerosing cholangitis (PSC)

PSC, better known as Primary Sclerosing Cholangitis is a rare disease that occurs frequently in patients with ulcerative colitis. In the PSC, the large bile ducts outside the liver become inflamed, narrowed and blocked. Outflow obstruction of the bile duct in biliary tract infections and jaundice, and eventually causes cirrhosis. In some patients, bile duct injury (usually after surgery) can also cause obstruction and cirrhosis of the liver.

• Autoimmune hepatitis

Autoimmune hepatitis is a liver disease caused by abnormal immune system that occurs most often in women. The abnormal immune activity in autoimmune hepatitis resulting in inflammation and progressive destruction of liver cells (hepatocytes), which eventually leads to cirrhosis.

• Babies can be born without bile ducts (biliary atresia)

Biliary atresia, also known as infant can be born without bile ducts and eventually develop cirrhosis. Other babies are born without enzyme vital for control of sugar that leads to the accumulation of sugars and cirrhosis. On rare occasions, the absence of a specific enzyme can cause cirrhosis and scarring of the lungs (alpha-1 antitrypsin deficiency).

• Other less common causes of cirrhosis include unusual reactions to certain drugs and exposure to toxins, and chronic heart failure (cardiac cirrhosis)

In some parts of the world (especially North Africa), infection of the liver parasites (schistosomiasis) is the most common cause of liver disease and cirrhosis.

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HAV Hepatitis A Causes Virus

Hepatitis A caused by a HAV virus (HAV is Hepatitis A Virus) which multiplies in the cells of the liver and excreted in faeces.

How Can Hepatitis A Virus (HAV) Spread

Hepatitis A virus is present in the feces (stool) of a person who has hepatitis A. The virus is spread most often when people put food or objects contaminated with HAV in feces in the mouth.

A large number of people who contracted the virus after drinking contaminated water, since in many parts of the world, drinking water is contaminated by raw sewage. The virus can also be transmitted by eating raw foods (such as raw seafood), fruits and vegetables unpeeled, washed with contaminated water. Outbreaks of hepatitis A caused by contaminated drinking water are rare in the United States, because water supplies are treated to kill viruses and other pests.

In United States and Canada, HAV (hepatitis A virus) is spread primarily among people who have close contact with someone who has the virus. You can be infected with Hepatitis-A-Virus if :

• Eating food prepared by someone who did not wash their hands after using the toilet or changing diapers.
• Do not wash hands after changing diapers.
• Consumption of raw shellfish or undercooked which are harvested in waters contaminated by raw sewage.
• Is it a man and have sex with men.

Outbreaks of hepatitis A among children in residential day care occur because children, especially those layers, you can get fecal matter in their hands and then touch objects that other children put in their mouths. Doctors at the centers of day care can transmit the virus if it does not wash hands thoroughly after changing a diaper.

It is very rare for hepatitis A is spread by infected blood or blood products. Not known to be transmitted by saliva or urine. Some people fear that the infection is linked to hepatitis, or increases the risk of acquired immunodeficiency syndrome (AIDS). This is not true. The hepatitis A is not related to human immunodeficiency virus (HIV) that causes AIDS, or increase their risk of HIV infection. A person can be infected with both hepatitis and HIV, but the two infections have nothing to do with each other.

Incubation periods, and contagion

After the HAV Hepatitis A Virus enters your body, the amount of virus from 2 to 7 weeks. Incubation period average is about 4 weeks.  Feces and other body fluids contain the highest levels of the virus 2 weeks before symptom onset. This is when they are most contagious, but can still transmit the virus after the onset of symptoms.

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Learning About Hepatitis A Overview

Hepatitis A is one of deadly diseases, also known as WZW typu A w Polska, epatite A in Italia, la hepatitis A en España, Hepatit A Türkiye’de and Hepatitis A in Canada, Deutschland, Nederland, UK and United States.

What is the Hepatitis A ?

Hepatitis A disease is a liver infection caused by a virus. It moves by itself in almost all cases. Hepatitis A does not lead to long-term term liver problems. Other forms of the virus (hepatitis C and hepatitis B) also can cause hepatitis. Hepatitis A is the most common type.

How is Hepatitis A Spread ?

The disease caused by virus hepatitis A. The virus is present in the stool of an infected person. It spreads when a person ingests food or drink water that came into contact with infected feces. Sometimes a group of people who eat at the same restaurant can get hepatitis A. This can occur when an employee with hepatitis A does not wash their hands after using the toilet and then prepares dinner.

The disease can also spread in the center day care. Workers can transmit the virus if you do not wash their hands after changing diapers. Some things can increase your risk of contracting hepatitis A, like eating cooked oysters or clams. If you travel to countries where hepatitis A is common, you can reduce your chances of contracting the disease by avoiding raw and tap water untreated.

How is Hepatitis A diagnosis

Your doctor will ask about your symptoms and they had eaten or traveled. You may do blood tests if your doctor thinks you have the virus. These tests can determine if the liver is inflamed and if you have antibodies against hepatitis A. These antibodies show that you have been exposed to the virus. Take steps to prevent transmission of hepatitis A to others. Tell people you live or have sex with whom you have Hepatitis A. Wash hands with soap and warm water after using the toilet or changing diapers and before preparing food.

Treatment of Hepatitis A Tips

Hepatitis A goes away on its own in most cases. You can help you feel better faster by drinking lots of water and eat a healthy mix of foods. Unlike other forms of hepatitis, hepatitis A does not cause long term illness or serious liver damage. Most people and in a few months.

Even if you have hepatitis A to reduce daily activities until all your energy states. As you begin to feel better, take your time to return to regular activities. If you try to meet your regular pace too soon is ill again. Can you become infected with hepatitis A after. After that, your body builds a defense against it.

Prevention from Hepatitis A

You can protect yourself by getting the vaccine against hepatitis A (Havrix or Vaqta). You will receive a series of two shots. Usually, it is 100% effective if you have two shots before being exposed to the virus. A combination vaccine (Twinrix) that protects against hepatitis A and hepatitis B is also available.

The United States Centers for Disease Control and Prevention advises that all children receive the vaccine against hepatitis A when they are at least 1 year of age. If you’ve been near someone you know has hepatitis A vaccine against hepatitis A or an injection of immune globulin (IG) can prevent the disease. It is important that you receive the vaccine within 2 weeks of exposure.

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