Rabu, 29 Juli 2009

Hepatitis A Definition,symptomps,Causes and Treatments

Hepatitis A virus was a common childhood infection in the early 20th Century but now in the 21st century it is an unusual infection in the UK. It is normally spread by the faecal-oral route but can also be spread occasionally through blood. Infection is prevented by good hygiene, especially hand washing, safe drinking water and food. Vaccination, passive or active, can be used to prevent groups at high risk including people who have been in contact with someone else who has the infection, travellers to countries where the infection is common, and other groups such as injecting drug users.

Hepatitis is a general term that means inflammation of the liver. Inflammation of the liver can result from infection, from exposure to alcohol, certain medications, chemicals, or poisons, or from a disorder of the immune system.

Hepatitis A refers to liver inflammation caused by infection with the hepatitis A virus (HAV). HAV is one of several viruses that can cause hepatitis and is one of the 3 most common hepatitis viruses in the United States. The other 2 are hepatitis B and hepatitis C.

How is hepatitis A spread?

Hepatitis A is typically spread through contact with infected feces. You can get infected through close contact with an infected person (for example, changing a diaper or having sexual contact), even if that person does not have any symptoms. In fact, hepatitis A is most contagious before symptoms appear. You can also get infected by eating contaminated food or drinking contaminated water. The virus can live on hands, in water and in soil. Hepatitis A is common in developing countries.

How is hepatitis A treated?

There is no specific medicine to treat or cure hepatitis A. If you have the virus, you should get plenty of rest, eat a balanced diet and avoid alcohol and acetaminophen (one brand: Tylenol). Both alcohol and medicines like acetaminophen are broken down by the liver and may increase the speed of liver damage in people who have hepatitis.

Talk with your doctor about any other over-the-counter medicines you are taking, as they may need to be changed or stopped while you have the virus.


How can I keep from getting hepatitis A?

Ask your doctor about the hepatitis A vaccine. The shot is safe for anyone over 2 years of age and can provide protection for up to 20 years.

Wash your hands with soap and warm water before and after cooking, after using the bathroom and after changing diapers.

Wash fruits and vegetables thoroughly before eating and avoid raw or undercooked meat and fish.

If you come into contact with someone who has hepatitis A and you have never had the virus or the vaccine, you should see your doctor right away. He or she can give you a shot that will help keep you from getting sick.

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