At What Age Do You Get Hepatitis B Vaccine

Who Should Get The Vaccine

• Newborns of mothers who have hepatitis B.
• All children before or in early adolescence. In some provinces and territories it is given to everyone during infancy. In others, it is given at school. Find out when your province offers the vaccine. In places where vaccine is not given in infancy, some children should not wait for the school program and should get the shot as soon as possible. These include:
• Everyone living in a house with someone with hepatitis B .
• All children whose families have immigrated from areas with high rates of hepatitis B.
• Children living in Canadian communities with high rates of hepatitis B, unless they are already immune.
• Children with conditions that require frequent blood transfusions or blood products, those who are on hemodialysis , or those who have chronic liver disease.
• Children with some conditions that weaken their immune systems.
• Children who are traveling to countries where there is a high rate of hepatitis B.

How Common Is Hepatitis B

One U.S. study following trends in hepatitis B infection over a three-year periodfound that 4.3% of the population had a past or present HBV infection.

Estimates suggest that about 240 million people around the world have chronic hepatitis B. Up to 1.89 million people in the United States have a chronic HBV infection.

Possible Side Effects Of Hepatitis B Vaccination

You may experience minor side effects following vaccination. Most reactions are mild and last no more than a couple of days and you will recover without any problems.

Common side effects of hepatitis B vaccines include:

• pain, redness and swelling at injection site
• occasionally an injection-site lump

Talk to your vaccination provider about possible side effects of hepatitis B vaccines, or if you or your child have possible side effects that worry you.

The Consumer Medicine Information available on the Therapeutic Goods Administration website lists the ingredients and side effects of each vaccine.

Learn more about the possible side effects of vaccination.

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What Are The Stages Of Hepatitis B

The entire illness of acute hepatitis B sequentially passes through three phases, namely prodromal phase, icteric phase and convalescence phase. The prodromal phase is characterized by MARKED LOSS OF APPETITE, and other fluâlike symptoms such as lowâgrade fever, nausea and vomiting, and lasts for a few days.

Why Do You Need A Hepatitis B Shot

Hepatitis B is a viral infection that cant be transferred person-to-person unless you have contact with an infected persons bodily fluids. Annual infection rates of HBV are going down in the United States thanks to vaccines. So you might be wondering if you or your child needs a shot to protect against hepatitis B.

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Vaccines For Hepatitis A And B

Our immune system battles foreign invaders every day, such as when we get a cold virus. When this happens, we develop immunity to that specific virus. This means that our body will fight off the virus if it is ever exposed to it again.

The same protection happens with vaccines. However, the benefit of a vaccination is that you don’t have to go through being sick to enable your body to fight off disease.

Gregory Poland, MD, director of the Mayo Clinic’s Vaccine Research Group, explains that hepatitis vaccinations contain a small amount of the inactive virus. When you get a dose of the vaccine, he says, your immune cells respond by developing immunity against the virus. This immunity lasts over a long period of time.

“So if I get these two doses of hepatitis A vaccine, and then I get exposed 30 years from now, my body will remember that immunity to the vaccine and rapidly start producing antibodies again,” says Poland.

Due to the way hepatitis vaccinations are developed, it is impossible to contract the virus from the vaccine itself, according to Poland.

The hepatitis A vaccine is usually given in two shots and the hepatitis B vaccine is administered as a series of three shots. The most common side effects are redness, pain, and tenderness where the shots are given.

To get long-term protection from these viruses, it’s important to receive all the shots as scheduled. However, if you received one shot and never went back for the others, it’s not too late to catch up.

Us Infant Hepatitis B Vaccine Schedules

*Please note that the first dose should be given as soon as possible. Additional doses require minimum time intervals between doses in order for the vaccine to be effective.

3-Dose Vaccine Series for Infants

Since 1991, ALL medically stable infants with a birth weight of at least 2,000 g in the U.S. are recommended to receive the first dose of hepatitis B vaccine within 24 hours of birth. The additional 2 doses are given at 1 month and 6 months of age.

4-Dose Vaccine Combination Series for Infants

Combination vaccines, such as the pentavalent and hexavalent vaccines, include protection against 5 or 6 diseases, including hepatitis B. The first shot is usually given at 6 weeks of age, but in order to protect infants from hepatitis B beginning at birth, a monovalent or single dose of the hepatitis B vaccine is also recommended within 24 hours of birth. The hepatitis B vaccine series can then be completed with the pentavalent or hexavalent vaccine with the recommended schedule.

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Who Should Get Hepatitis Vaccinations

Since the vaccines were first developed, the hepatitis A and B vaccines have become part of the regular childhood immunization schedule. They are not considered a routine adult immunization.

“When we’re talking about adults, I would say yes, get the vaccine if they fit into one of these risk factors” says Poland. “If they don’t fit into the risk factors, their risk is so low that there’s no compelling reason to do it.”

People at risk for hepatitis A include:

• Anyone traveling to or working in areas where hepatitis A is more widespread.
• People whose work puts them in potential contact with hepatitis A, such as those who work with the hepatitis A virus in research labs
• People who are treated with clotting-factor concentrates
• People who have chronic liver disease
• People who use recreational drugs, injected or not
• Men who have sex with men

People at risk for hepatitis B include:

• Anyone traveling to or working in areas where hepatitis B is more widespread.
• Health care workers and other people whose job exposes them to human blood
• People with HIV infection, end-stage kidney disease, or chronic liver disease
• People who live with someone with hepatitis B
• People who inject street drugs
• Sexually active people who have had more than one partner
• Anyone who has had an STD
• Men who have sex with men
• Sex partners of people with hepatitis B

Important Information About Vaccine And Hepatitis B Immunoglobulin Shot Administration

Where available, the hepatitis B birth-dose and HBIG should be administered within 24 hours of birth in order to prevent the transmission of hepatitis B from mother to child. It is very important that the shots be given in opposite limbs, to ensure the highest effectiveness. Please see chart above for more information.

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Are There Side Effects From The Vaccine

The vaccine, used in Canada since 1982, is one of the safest vaccines around. It may cause minor side effects that can last a day or more, such as:

• Redness, warmth, or slight swelling at the site of injection

Serious reactions are rare. These reactions may include: trouble breathing, swelling of face or mouth, fever over 39°C, hives, or a rash. Report them to your health care provider or local health unit if these reactions occur within 15 days of injection.

How Hepatitis Is Spread

Hepatitis A: About 20,000 people in the U.S. contract hepatitis A each year. The hepatitis A virus is found in the stool of the infected person. It is spread through contaminated food or water or by certain types of sexual contact.

Children who get hepatitis A often don’t have symptoms, so they can have the virus and not know it. However, they can still spread it easily. Fortunately, children are now routinely vaccinated against hepatitis A.

Most people who get hepatitis A recover completely within two weeks to six months and don’t have any liver damage. In rare cases, hepatitis A can cause liver failure and even death in older adults or people with underlying liver disease.

Hepatitis B: Every year, about 40,000 people in the U.S. become infected with hepatitis B. Acute hepatitis lasts from a few weeks to several months. Many infected people are able to clear the virus and remain virus-free after the acute stage. However, for others, the virus remains in the body, and they develop chronic hepatitis B infection, which is a serious, lifelong condition. About 1.2 million people in the U.S. have chronic hepatitis B. Of these, 15% to 25% will develop more serious health problems, such as liver damage, cirrhosis, liver failure, and liver cancer, and some people die as a result of hepatitis B-related disease.

Hepatitis B cannot be spread by contaminated water, food, cooking, or eating utensils, or by breastfeeding, coughing, sneezing, or close contact such as kissing and hugging.

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For Adults And Children

This vaccine schedule involves three doses within 2 months, followed by a booster dose at 1 year.

The initial accelerated doses provide immediate protection from HBV, and the booster dose helps provide long-term protection.

Below is the accelerated vaccination schedule approved for both adults and children:

What Are The Risks Of Hepatitis B

About 90 per cent of adults infected with Hepatitis B recover within six months. However about 90 per cent of infected babies and 10 per cent of infected adults will develop chronic infection for life. Chronic Hepatitis B can cause cirrhosis of the liver, liver cancer, liver failure and death. A person with chronic Hepatitis B also has higher risk of being infected with another viral Hepatitis.

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What If My Child Misses The Hepatitis B Shot At School

The Health Unit provides Hepatitis B vaccine clinics at most school sites during the fall and spring for Grade 7 students. You canbook an appointment to get your child’s vaccine at the Health Unit should they miss it at school.

Can my child or myself get the Hepatitis B shot at our family doctors?

Publicly-funded hepatitis B vaccine is only available through the Health Unit. If given by the family doctor or at a clinic, you must pay for the vaccine. Up to three doses may be needed.

For further information, contact the Health Unit at 258-2146 ext. 1222.

When To Delay Or Avoid Hepb Immunization

Doctors delay giving the vaccine to babies who weigh less than 4 pounds, 7 ounces at birth whose mothers do not have the virus in their blood. The baby will get the first dose at 1 month of age or when the baby is discharged from the hospital.

The vaccine is not recommended if your child:

• is currently sick, although simple colds or other minor illnesses should not prevent immunization
• had a serious allergic reaction after an earlier dose of the vaccine or is allergic to baker’s yeast

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Immunisation Against Hepatitis B For People At Risk

In Victoria free hepatitis B vaccine is provided for people who are at increased risk, including:

• Men who have sex with men.
• People living with HIV.
• People living with hepatitis C.
• People no longer in a custodial setting who commenced, but did not complete, a free vaccine course while in custody.
• Aboriginal and Torres Strait Islander people.
• People born in priority hepatitis B endemic countries who arrived in Australia in the last 10 years priority countries include China, Philippines, Malaysia, Vietnam, Afghanistan, Thailand, South Korea, Myanmar , Indonesia, Singapore, Hong Kong, Taiwan and Cambodia.
• Vulnerable citizens people who have experienced hardship that prevented them from accessing the vaccine earlier. Vulnerable citizens are vaccinated based on an individual assessment by an immunisation provider.

Immunisation is also recommended, but not free, for people who are at increased risk including:

If you think you have been exposed to hepatitis B, see a doctor immediately. Your doctor can give you treatment that, in some instances, can greatly reduce your risk of infection with hepatitis B.

Remember that being immunised against hepatitis B does not protect you against HIV, hepatitis C or other diseases spread by blood or bodily fluids. It is important that you take precautions to make sure you are not exposed to these diseases.

Accelerated Us Children And Adult Hepatitis B Vaccine Schedules

*Please note that the first dose should be given as soon as possible. Additional doses require minimum time intervals between doses in order for the vaccine to be effective.

In some instances, it may be necessary to vaccinate within a short period of time to ensure protection before travel. There are accelerated schedules to provide the highest level of protection over a short period of time. Individuals who need an accelerated schedule must have a booster dose at 1 year to ensure long-term protection. Note that the 2-dose Heplisav-B vaccine will also ensure maximum protection over a 1-month period without the need for a booster dose at 1 year.

4-Dose Vaccine Series for Children and Adults

Engerix-B is a 3-dose vaccine that can be given on an accelerated, four-dose schedule, with 3 shots administered within 2 months, and a booster dose at 1 year to provide maximum long-term protection.

4-Dose Combination Hepatitis A and B Vaccine Series

Twinrix is a 4-dose vaccine that can be given on an accelerated schedule to provide protection against hepatitis A and B. Three doses are administered within 1 month, followed by a booster shot at 1 year. This is a common choice of vaccine for those travelling on short-notice outside the U.S. It is important to complete the booster dose at 1 year, to ensure long-term protection.

2-Dose Vaccine Series

Additional Resource Links:

• Hepatitis B Vaccine Q& A

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A Look At Each Vaccine: Hepatitis B Vaccine

View larger image The hepatitis B vaccine is given to prevent the severe liver disease that can develop when children or adults are infected with hepatitis B virus. The hepatitis B vaccine is given as a series of three shots. The first dose is given within 24 hours of birth. The second dose is given one to two months after the first dose, and the third dose is given between 6 months and 18 months of age. The vaccine is also recommended for those up to 60 years of age who have not previously received it and those 60 years and older who are at increased risk or who simply want the protection afforded by vaccination.

Concerns About Immunisation Side Effects

If the side effect following immunisation is unexpected, persistent or severe, or if you are worried about yourself or your child’s condition after a vaccination, see your doctor or immunisation nurse as soon as possible or go directly to a hospital.

It is important to seek medical advice if you are unwell, as this may be due to other illness, rather than because of the vaccination.

Immunisation side effects may be reported to SAEFVIC, the Victorian vaccine safety and reporting service. Discuss with your immunisation provider how to report adverse events in other states or territories.

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Safety Of Hepatitis Vaccines

Hepatitis vaccines have been given to millions of people all across the world without any evidence of serious side effects. “They’re very safe, and they’re extremely effective,” says Poland.

If you are not sure whether you should have hepatitis vaccines, talk with your doctor about your specific concerns.

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Hepatitis B Vaccination Schedule For Children And Infants

The Centers for Disease Control and Prevention recommends that babies and children receive three 0.5 milliliter doses of either Engerix-B or Recombivax HB, starting just after birth.

The current recommended hepatitis B vaccine schedule for children and infants is as follows:

If your child is undergoing hemodialysis, your healthcare provider may recommend that they receive additional doses of the HBV vaccine.

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How Can I Contract Hepatitis A

You can contract the hepatitis A virus by eating food or drinking beverages that have been contaminated by human fecal waste.

Resort activities that may put you at risk for hepatitis A include:

Eating food handled by an infected worker who did not wash his/her hands properly after using the washroom

Eating raw or undercooked seafood and shellfish that lived in sewage-polluted water

Eating salads or produce rinsed in contaminated water

Drinking contaminated water or drinks with contaminated ice

Bathing, showering, or swimming in contaminated water