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Hepatitis B Fast Facts

July 29, 2011

Hepatitis B is the most common serious liver infection in the world. It is caused by the

hepatitis B virus (HBV) that attacks liver cells and can lead to liver failure, cirrhosis

(scarring) or cancer of the liver. The virus is transmitted through contact with blood and

bodily fluids that contain blood.

Most people are able to fight off an hepatitis B infection and clear the virus from their

blood. This may take up to six months. While the virus is present in their blood, infected people can

pass the virus on to others.

Approximately 5-10% of adults, 30-50% of children, and 90% of babies will not get rid of the virus and

will develop chronic infection. Chronically infected people can pass the virus on to others and are at

increased risk for liver problems later in life.

The hepatitis B virus is 100 times more infectious than the AIDS virus. Yet, hepatitis B can be prevented

with a safe and effective vaccine. For the 400 million people worldwide who are chronically

infected with hepatitis B the vaccine is of no use. However, there are promising new treatments for

those who live with chronic hepatitis B.

In the World:

• This year alone, 10 to 30 million people will become infected with the hepatitis B virus (HBV).

• The World Health Organization estimates that 400 million people worldwide are already

chronically infected with hepatitis B.

• HBV infection leads to over 1 million deaths each year.

In the US:

• This year alone, 100,000 new people will become infected with HBV.

• The Centers for Disease Control and Prevention (CDC) estimate that 1.25 million Americans are

already chronically infected with hepatitis B.

• Between 5000 and 6000 Americans die of hepatitis B-related liver complications each year.

How is Hepatitis B Transmitted?

Hepatitis B is most efficiently transmitted through blood and infected bodily fluids. This can occur

through direct blood-to-blood contact, unprotected sex, illicit drug use, and from an infected woman to

her newborn during the delivery process.

Hepatitis B can be spread by

• unprotected sex

• sharing IV drug needles

• living in a household with an infected person

• an infected mother to her newborn child at birth

• sharing earrings, razors, or toothbrushes with an infected person

• unsterilized needles, including tattoo or piercing needles

• human bites

Hepatitis B is not spread by

• kissing on the cheek or lips

• coughing or sneezing

• casual contact such as hugging or holding hands

• eating food prepared by an infected individual

People are most at risk for hepatitis B if they

• are born to mothers who are infected with HBV

• live in close household contact with a chronically infected individual

• adopt a child from a country where HBV is prevalent

• have unprotected sex or have more than one sexual partner in a six month period

• have ever been diagnosed with a sexually transmitted disease (STD)

• men who have sex with men

• share needles and syringes

• are health care provider or emergency responder with possible contact with bodily fluids

• are a patient on kidney dialysis

• live or work in an institutional setting, such as a prison or group home

Can hepatitis B be prevented?

YES! Ask your doctor about the safe and effective vaccine and protect yourself and your

loved ones for a lifetime. The CDC and the American Academy of Pediatrics recommend

that all infants, children and adolescents up to age 18 receive the HBV vaccine. The

vaccine is also recommended for all adults who may be at high risk for infection.

The cost for the vaccine varies in the US, but most insurance plans cover infants and children

to 18 years of age. Some people can receive the vaccine free of charge from their local public

health clinic. High-risk adults may also be covered by their health insurance or can receive the vaccine

through an STD or family planning clinic.

Remember, it only takes three shots to provide a lifetime of protection.

http://www.hepb.org/pdf/hepb_fast_facts_2010.pdf

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