About the Virus

What is Hepatitis B?

Hepatitis B is the most common serious liver infection in the world. It is a virus that specifically attacks cells in the liver. Globally, there are nearly 300 million people living with chronic Hepatitis B. Additionally, it has been estimated that about 2 billion people have been infected with Hepatitis B (either acute or chronic). There are other viruses that may attack the liver such as Hepatitis A, C, D and E, but each virus is unique. Fortunately, there is a vaccine to prevent new Hepatitis B infections and excellent treatments for those that need treatment.

Hepatitis B can result in either an acute or chronic infection. When a person is newly infected, it is called an “acute” infection. If the person continues to test positive for Hepatitis B surface antigen (HBsAg) for longer than 6 months, then it is considered a chronic infection. Testing is the only way to know for sure if a person is infected with Hepatitis B, and if they have acute or chronic infection.

Babies and young children are particularly vulnerable to the Hepatitis B virus. While ninety percent (90%) of babies and up to 50% of young children will progress to chronic infection with Hepatitis B, only up to 10 percent (10%) of healthy adults will progress to chronic infection. (90% of healthy adults will clear acute Hepatitis B infections. Most do not require any medication to clear an acute infection.).

People are often surprised to learn of their hepatitis B infection because there may be few or no symptoms for decades. They may think they have an acute hepatitis B infection, when, in fact, they were infected as a baby or young child and have a chronic infection. This is because hepatitis B may go unnoticed with no – or few mild – symptoms.

The good news is that hepatitis B can be prevented with the safe and effective hepatitis B vaccine. Ideally, ALL babies are vaccinated within 24 hours of birth and complete the vaccine series on schedule, to protect them from hepatitis B for a lifetime.

Why is Hepatitis B so dangerous?

Hepatitis B is dangerous because it is a “silent infection,” which means it can infect people without them knowing it. Most people who are infected with Hepatitis B are unaware of their infection for many years and can unknowingly spread the virus to others through direct contact with their infected blood and sexually. Please visit this page to learn more about Hepatitis B transmission and how to protect your family. For those who become chronically infected, there is an increased risk of developing serious liver disease later in life. The virus can quietly and continuously attack the liver over many years without being detected because there are often few or no notable symptoms. The only way to confirm a Hepatitis B infection is through a blood test.

Hepatitis B may feature typical viral Hepatitis symptoms like yellow skin, yellow eye-white “sclera” and dark urine. Alternatively, it may occur unnoticed with subtle fatigue and/or muscle pain. This is why it is often missed.

Medical Management and Treatment

What blood tests are important to diagnose and evaluate my Hepatitis B infection?

In order to understand your Hepatitis B status, it is important that your doctor order the Hepatitis B blood panel. This panel includes 3 basic biomarkers, but only one sample of blood is needed. Make sure you request a written copy of your blood test results so that you fully understand what tests were ordered and the actual results of each. Also, be sure to have your doctor clearly explain the results to you so that you fully understand your situation.

It is important to wait 6-8 weeks after a possible exposure before getting tested.  If done before this time (known as “the window period”), the blood tests can have a false negative result. The window period is the time between exposure and the appearance of these markers in blood. The 3-part blood test includes the following:

  1. Hepatitis B surface Antigen (HBsAg) – This directly tests for the presence of the Hepatitis B virus. It should be negative if there is NO virus present.
  2. Hepatitis B surface Antibody (HBsAb or anti-HBs) – This tests for the production of protective antibodies against the Hepatitis B virus. This blood test should be positive if the protective antibodies are produced in response to vaccination or recovery from a natural infection.
  3. Hepatitis B core Antibody (HBcAb or anti-HBc) – This antibody does not provide any protection. A positive result may indicate that a person has been exposed to the Hepatitis B virus. This test must be interpreted in relation to the above 2 test results.

Please note that all three blood test markers are interpreted in relation to each other. Depending on one marker alone may not provide the full or accurate picture of your hepatitis B status.

Is there a cure for Hepatitis B?

There is no cure or medication that totally eliminates the virus or makes HBsAg negative, but there is hope. There are approved therapies for Hepatitis B and many in development. First-line therapies in the U.S. and globally are entecavir, tenofovir (TDF) and tenofovir (TAF), which are antivirals. Sometimes, pegylated interferon is used. These drugs control and manage the virus and reduce potential liver damage. The virus is suppressed, liver enzymes and liver function tests may normalize and the liver is better able to heal. In rare cases, they may even get rid of the virus (HBsAg negative).

What treatments (medicines) are available for chronic Hepatitis B?

First line treatments include antiviral therapies such as tenofovir (TDF), entecavir and Vemlidy (TAF) which are taken once daily. These antivirals are not a cure for chronic Hepatitis B, but they work to suppress or control the virus while you are taking them. When the virus is suppressed, liver disease progression is slowed or even stopped, and the liver is often able to heal with time. It is important to see a knowledgeable doctor to determine if you are a good candidate for treatment since treatment is a commitment, and is taken for at least a year, usually for many years or even for life – or until there is a cure found for this disease.

If the currently approved Hepatitis B drugs do not provide a cure, then how are they helping?

Unmanaged Hepatitis B infection causes, in the long run, liver damage and significantly increases the risk of liver cancer. The use of antivirals decreases the progression of liver disease and significantly reduces the risk of liver cancer due to the Hepatitis B virus. Antivirals work by slowing down or stopping the virus from reproducing. The less virus in the blood and the liver, the less damage being done to the liver. Once the virus is suppressed, inflammation of liver tissue decreases, which is noted by a lowering of liver enzymes (SGPT/ALT and SGOT/AST). With time, the liver may be able to heal, and some damage may be reversed.

Antivirals such as tenofovir alafenamide (TAF), tenofovir disoproxil (TDF) and entecavir are effective and safe. However, they work only as long as they are taken. Stopping and starting antivirals should be avoided if possible. Most people take one pill every day for years (just like drugs for hypertension, high cholesterol and high blood sugar). Taking doctor-prescribed antivirals can be lifesaving by keeping the liver in the best health possible until a functional cure is available.

Does everyone with chronic Hepatitis B need to take medicine?

Not everyone with chronic Hepatitis B needs treatment. Every person should be carefully evaluated by a doctor with experience treating people living with Hepatitis B. There are often few or no symptoms for decades, so the only way to know for sure is to get specific blood tests to learn more about your hepatitis B infection and the health of your liver.

Tests may include

  • Hepatitis B-specific blood tests such as HBsAg, HBsAb, HBeAg, HBeAb, HBV DNA, qHBsAg,
  • Liver-specific blood tests such as those that check for liver damage (ALT/AST), and those that evaluate liver function.
  • Diagnostic imaging such as ultrasound and/or Fibroscan may also be used to help determine the health of the liver.

Your doctor will also want to know if there is a family history of liver disease or liver cancer. An experienced doctor looks at the results of these tests in relation to each other to determine if you would benefit from currently available treatments. Your doctor might also refer to one of the professional Clinical Guidelines, developed by professional medical organizations to provide guidance to doctors treating people diagnosed or living with Hepatitis B.

You should also make sure to support your liver by following a healthy lifestyle, avoid alcohol, avoid smoking, eating healthy and getting regular exercise.

The below medicines are the ones approved for treatment of Hepatitis B. these medicines are not cure for Hepatitis B. They work by controlling viral replication and consequently reducing the risk of liver damage.

  • Antivirals: Tenofovir disoproxil (Viread), Entecavir (Baraclude), Tenofovir alafenamide (Vemlidy), Lamivudine (Epivir).
  • Interferons: Alpha or Pegylated forms.

Will herbals, natural “remedies”, Ayurveda or Traditional Chinese Medicine, supplements, or vitamins and minerals control Hepatitis B?

We get many people living with chronic Hepatitis B asking about various herbals and supplements. The Hepatitis B Foundation does not recommend using these, as they are not FDA approved. Health authorities in different countries also don’t vet the content of such herbs or supplements. This is because they are not tested or regulated for effectiveness, safety, and purity. This lack of regulation means that you do not know what you are getting from dose to dose. The lack of testing means that taking some of these could do more harm to your liver than good.

At best, these “might” be supportive of the liver, but they will not change the course of the virus and the damage to the liver that the virus may be doing. Keep in mind that not everyone needs treatment, but if you do, please talk to a knowledgeable doctor about getting first line antivirals (tenofovir (TDF), tenofovir (TAF) or entecavir) to control and suppress the Hepatitis B virus. We know many are often “prescribed” a potentially supportive vitamin complex. Unless you have a vitamin deficiency, you may benefit equally as well by focusing on eating a healthy, well-balanced diet.

There are many people out there trying to sell you a “cure”, but we can assure you that at this time, chronic Hepatitis B is not a curable disease. If it sounds too good to be true, it is not true. if this is your first time being diagnosed with Hepatitis B, discuss with your doctor whether this is an acute or chronic infection. If this is an acute infection, it is likely that you will resolve the infection without the need for medication or supplements.

I keep hearing about a “Functional Cure” for chronic Hepatitis B, what does this mean?

New drugs in the research pipeline show promise of what researchers call a “Functional Cure.” New drugs or a combination of drugs will result in the loss of the Hepatitis B surface antigen (HBsAg), which means there is no detectable HBV DNA (complete virus) or surface antigen (HBsAg or viral proteins) in the blood. This can occur with or without development of surface antibodies against the Hepatitis B virus (HBsAb+ or anti-HBs+). A “functional cure” does not eliminate the stable, replicative form of the DNA of the virus that hides and combines with the DNA of the liver cells (called cccDNA). However, it should maintain long term suppression of the virus and reduce the risk of liver cancer even when treatment is stopped. Most importantly, a “functional cure” means that the new drugs would be taken for a finite amount of time rather than many years.

Living with Hepatitis B

Is there any special diet for people living with chronic Hepatitis B infection?

In general, you want to be sure you are living a healthy lifestyle. Avoid alcohol and cigarettes. Eat a healthy, well-balanced diet, and get regular exercise. When possible, choose whole foods fresh vegetables, fruits, whole grains, plant-based proteins (like tofu, grains, and peanuts), fish and lean meats. Avoid processed foods and limit sugary drinks (sodas and fruit juices) and foods with added sugar. Limit red and fatty cuts of meat and limit foods deep fried in unhealthy oils. Avoid processed meats (like hot dogs and deli meats). Make sure to buy your nuts from trusted sources, and to inspect the nuts and grains for any signs of Aflatoxin poisoning (mouldy appearance and discoloration). Also be very careful with medications or herbal remedies and supplements. Some supplements and herbs can do more harm than good.

If I don’t need to take medicine for my Hepatitis B at this time, what must I do to support my liver?

If you have been carefully evaluated by a knowledgeable doctor and learned you do not need treatment, it is important to continue with regular monitoring of your Hepatitis B infection and the health of your liver every 6 months or at least annually because things can change with time – even if you have been in an inactive phase of the virus.

In general, you want to be sure you are living a healthy lifestyle. Avoid alcohol, cigarettes, and eat a healthy, well-balanced diet, and get regular exercise. Eat a diet full of vegetables, fruits, whole grains, plant-based proteins, fish and lean meats. Avoid processed foods and limit sugary drinks (sodas and fruit juices) and foods with added sugar. Limit red and fatty cuts of meat and limit foods deep fried in unhealthy oils. Also be very careful with medications or herbal remedies and supplements. Some supplements and herbs can do more harm than good.

You also want to be sure close household contacts, family members, and sexual partners are tested. We are very lucky that Hepatitis B is a vaccine preventable disease.

What blood tests are important to diagnose and evaluate my Hepatitis B infection?

In order to understand your Hepatitis B status, it is important that your doctor order the Hepatitis B blood panel. This panel includes 3 basic biomarkers, but only one sample of blood is needed. Make sure you request a written copy of your blood test results so that you fully understand what tests were ordered and the actual results of each. Also, be sure to have your doctor clearly explain the results to you so that you fully understand your situation.

It is important to wait 6-8 weeks after a possible exposure before getting tested.  If done before this time (known as “the window period”), the blood tests can have a false negative result. The window period is the time between exposure and the appearance of these markers in blood. The 3-part blood test includes the following:

  1. Hepatitis B surface Antigen (HBsAg) – This directly tests for the presence of the Hepatitis B virus. It should be negative if there is NO virus present.
  2. Hepatitis B surface Antibody (HBsAb or anti-HBs) – This tests for the production of protective antibodies against the Hepatitis B virus. This blood test should be positive if the protective antibodies are produced in response to vaccination or recovery from a natural infection.
  3. Hepatitis B core Antibody (HBcAb or anti-HBc) – This antibody does not provide any protection. A positive result may indicate that a person has been exposed to the Hepatitis B virus. This test must be interpreted in relation to the above 2 test results.

Please note that all three blood test markers are interpreted in relation to each other. Depending on one marker alone may not provide the full or accurate picture of your Hepatitis B status.

I am diagnosed with chronic Hepatitis B, can I get married and have children?

Yes, you can safely marry and have children if you are living with Hepatitis B.

Although there is sometimes stigma associated with having Hepatitis B and fear of transmission, it should not be that way. There is a safe and effective vaccine to prevent transmitting Hepatitis B infection to loved ones. Be sure your future partner is vaccinated with the 3-dose Hepatitis B vaccine series given at 0, 1 and 6 months. Practice safe sex using a condom until your partner completes the vaccine series.

Since marriage is a shared journey, so is the journey with Hepatitis B. Assure your partner that you will take good care of your health, and that you will make sure to keep your regular visits to the doctor and maintain a healthy lifestyle. Also make sure to involve your partner in every step of the journey, and seek their support when it comes to treatment options, or keeping a healthy lifestyle.

Can I donate blood if I have Hepatitis B?

No. The blood bank will not accept any blood that has been exposed to Hepatitis B, even if you have recovered from an acute or chronic infection.

If I have chronic Hepatitis B infection, can I hug my children, partner or friend?

Yes, you can and should hug your loved ones! Hepatitis B is not spread casually, and it cannot be spread through hugging.

Actually, hugging has many health benefits like reducing stress and fear, boosting heart health, and reducing pain, to name a few.

In many parts of the world, where Hepatitis B is common, Hepatitis B infection is most often transmitted from a mother who is living with hepatitis B to her new-born baby due to blood exchanged during the delivery process. Hepatitis B is transmitted through direct contact with infected blood and infected sexual fluids. This can occur through sharing sharp instruments such as razors, nail clippers, toothbrushes, earrings or body jewellery, since small amounts of blood can be exchanged through these items. Hepatitis B may also be transmitted during unprotected sex with an infected partner, sharing needles, unsterilized medical or dental equipment. Also, body piercing and tattooing are potential sources of infection if unsterile needles or contaminated ink are used. The good news is that completion of the Hepatitis B vaccination series provides lifelong protection against a Hepatitis B infection in anyone who has not already been infected.

I’m in love, when and how do I tell my (prospective) partner that I have Hepatitis B?

This is not an easy situation, and it is a challenge that is shared by many people living with Hepatitis B.

Before you share your Hepatitis B status, you should be prepared. Make sure you are well-informed, because once you share the information, there will be questions you’ll need to answer. Have easy-to-understand resources, like Hepatitis B Foundation website pages, fact sheets or blogs, flagged or printed and ready to share. Additionally, you need to be prepared mentally for all sorts of reactions (both yours and theirs). People may feel supportive, surprised, fearful, or even angry. It is a good idea to talk to others with Hepatitis B before you have this conversation, to get suggestions and advice.

Regardless of how the situation unfolds, please know that Hepatitis B does not define who you are or what you can do! And be prepared that your relationship may change. If you find that your prospective partner is not receptive, you may learn that you’re better off without this person, as there are many challenges occurring in a lifetime. It’s important to have a supportive partner!

If Hepatitis B is sexually transmitted, how come my partner isn’t infected?

This is possible, and not an uncommon scenario. There are several factors that may lead to this situation.

Hepatitis B Virus (HBV) viral load of the partner living with Hepatitis B may be undetectable. The lower the viral load in the blood of an infected individual, the less infectious they are. The likelihood of transmitting Hepatitis B virus increases with higher viral loads (HBV DNA). Please discuss with your doctor the benefits of antivirals in lowering viral load and potentially reducing the risk of transmitting Hepatitis B.

Type of sexual activity is another important factor. There are sexual activities that are associated with higher risk of Hepatitis B transmission than others due to the potential exchange of infected fluids (blood, semen and vaginal fluids). For example, anal sex is considered the highest risk sexual activity followed by vaginal intercourse. Oral sex and deep kissing have been reported to be less risky interactions in transmitting HBV. However, any activity that might involve abrasions or trauma may put a person at higher risk of transmission (consider the idea of bleeding gums or cold sores). If you have multiple partners or your partner is in the process of being vaccinated, condoms and dental dams are always recommended to reduce risk of transmission.

Timing of sexual activity may also play a role as sexual activity during the menstrual period poses higher risk of blood contact if the menstruating person is infected. This is why the use of dental dams or condoms is recommended.

Your partner’s Hepatitis B status. Your partner may have a current hepatitis B infection, resolved a previous infection, or may have been vaccinated in the past as a child. This is why, the Hepatitis B three- test panel (HBsAg, HBcAb total and HBsAb) is standard practice for screening to best understand one’s Hepatitis B status. Please encourage your partner to consider the Hepatitis B vaccine series if their screening reveals that they are susceptible. The Hepatitis B vaccine is safe, effective, and provides lifelong protection.

If chronic Hepatitis B is a silent disease, why do I have symptoms?

There have been several studies about symptoms of Hepatitis B, and these studies clearly show that people living with Hepatitis B commonly experience fatigue, tiredness, muscle pain, abdominal pain (especially above where the liver is), nausea and vomiting.

It is important that you share any symptoms you have with your doctor to help manage these symptoms, and people in your close circle (family and friends), so they can understand your daily challenges, and support you in the most appropriate way.

Even if a person has normal liver enzymes and low or undetectable Hepatitis B viral load, they might still feel symptoms related to their Hepatitis B – although not all healthcare providers recognize that people with normal lab tests can still feel sick from their Hepatitis B. Hepatitis B Foundation conducted a global survey about the lived experiences of Hepatitis B, and respondents from around the globe shared the physical symptoms they experience. It is also very important to ensure that other conditions are also ruled out such as non-alcoholic fatty liver disease, gastrointestinal issues or even H. pylori, all of which are also common globally and may have symptoms associated with them.

Sometimes I feel sad and depressed because of my Hepatitis B status, what should I do?

We are so sorry that your Hepatitis B infection is causing distress. Do understand that you are not alone! Many people living with Hepatitis B feel the same, but because hepatitis B is still stigmatized, and doesn’t receive the proper support that it deserves, people often feel isolated and alone. Know that there are things you can do to help yourself and others in this fight.

Educate yourself about Hepatitis B. Knowledge is power, and when you have the power, you can defeat the disease by taking the right steps to support your health. To start, you will need to regularly monitor your Hepatitis B infection and the health of your liver and discuss with your doctor whether you need to take antivirals. Here are several resources to increase your knowledge about hepatitis B:

  1. Hepatitis B Foundation website is a comprehensive link to all areas related to Hepatitis B. From there you can connect to numerous resources including preventing, diagnosing, treating and managing Hepatitis B, along with language chapters in different languages.
  2. Learn about the physical, social, and emotional impact of living with chronic Hepatitis B, and how this impacts people like you around the globe and what to do about it.
  3. Hepatitis B Foundation Blog: this is a great resource for day-to-day life issues that matter to Hepatitis B patients, like disclosing to a partner, learning about the virus and ways to get involved, etc.
  4. Hepatitis B Information Guide is a good resource for quick information about Hepatitis B and might be helpful to share with others.
  5. HBV Patient Education Hub (CME Outfitters)
  6. CDC Hepatitis B Patient Education Resources: This website has a great deal of information in the form of questions and answers.

Make a conscious decision to live a healthy lifestyle to support your liver. You’ve got this; you are in control! You can support your liver by not drinking alcohol, not smoking and maintaining a healthy weight by eating a well-balanced diet and getting regular exercise. Here is more information on how to maintain a healthy liver. Also, be very careful with medications or herbal remedies and supplements. Some supplements and herbs can do more harm than good.

Think about who you would like to inform about your diagnosis and when. You don’t have to disclose your Hepatitis B status to the entire world, but we all have people in our close circle, with whom we would like to share our tough moments.

Finally, if you feel you cannot get the help and support from your partner, family or circle of friends, please consider seeking professional help from a trained counsellor or trusted community leader. Please talk to your doctor to refer you to a professional consultant.

Please know that people with Hepatitis B have bright futures and long lives ahead of them – they can go to school, have careers, date, marry, have children, and live a normal life. We know it is hard to stay optimistic, but it is important to always keep a positive attitude. Do that and you’ll live a happy, fulfilling life!

Prevention / Vaccination

I am currently pregnant, and I have chronic Hepatitis B. What should I do to protect my baby?

Pregnant people who have Hepatitis B can transmit the virus to their new-borns during delivery (due to the blood exchanged during the childbirth process). Many of these babies will become chronically infected, which increases their risk of serious liver disease later in life. However, we can prevent Hepatitis B transmission from mother to baby! There are a few simple steps you and your doctor can take.

Your new-born must be given two shots in the delivery room – the first dose of Hepatitis B vaccine (5 mcg dose) and one dose of hepatitis B immune globulin (HBIG, 0.5 mL dose)*. These two shots must be given at separate injection sites, i.e. different limbs. If these two medications are given correctly within the first 12 hours of life, a new-born has a 95% chance of being protected against a lifelong Hepatitis B infection. The infant will need additional doses of hepatitis B vaccine at one and six months of age to provide complete protection.

*Note: HBIG is recommended by U.S. CDC. HBIG is not recommended by World Health Organization (WHO) and may not be available in all countries. What is most important is to make sure the Hepatitis B vaccine birth dose is given as soon as possible!

Another important step to reduce the risk of transmitting the infection to your baby, is to determine whether the viral load (HBV DNA) is high in your blood. If the viral load is high, it is recommended that you take antivirals during the third trimester of pregnancy, to get the virus under control, and reduce the risk of transmission to your baby. Assessing the viral load is best done through an HBV DNA test, however this test is not always available, and often is expensive. The World Health Organization (WHO) recommends that all pregnant women get tested for HBeAg. If HBeAg is positive, it is recommended to receive antiviral therapy during the final three months of pregnancy (third trimester).

ACTION PLAN:

  1. Ask your doctor to test you for HBeAg or HBV DNA (Hepatitis B viral load test if it is available) to determine if treatment with an antiviral is needed during the last trimester of your pregnancy.
  2. Make sure you have chosen a specific health facility to deliver your baby. Inform the healthcare team there that you will need the Hepatitis B vaccine ready for your babies in the delivery room (or as soon as possible but within the first 12 hours of birth).
  3. When it is time for the baby to be delivered, make sure to go to that health facility for your delivery.

Children who receive Hepatitis B vaccine and HBIG at birth should complete the 3-part vaccine series and should be tested at 9-15 months of age, to make sure that the vaccine worked and that they are not infected and have protection against Hepatitis B. Testing before 9 months of age can be inaccurate.

Can a Hepatitis B infection be prevented? How can I protect my loved ones?

Yes, Hepatitis B is preventable through a safe and effective vaccine. The Hepatitis B vaccine provides lifelong protection. If you, or someone you love, have been diagnosed with Hepatitis B, make sure other household members are screened for Hepatitis B, and those who are not infected or vaccinated should receive the hepatitis B vaccine.

Hepatitis B is not spread casually, but is transmitted through direct contact with blood and sexual fluids. This can occur through direct blood-to-blood contact, unprotected sex, unsterile needles, and from an infected woman to her newborn during the delivery process. Other possible routes of infection include sharing any sharp instruments such as razors, nail clippers, toothbrushes or earrings, since small amounts of blood can be exchanged through these items. Also, body piercing and tattooing are potential sources of infection if unsterile needles are used.

Is the Hepatitis B vaccine safe?

Yes, the Hepatitis B vaccine is a safe and effective vaccine. In fact, it is the first “anti-cancer vaccine” because it can protect you from Hepatitis B, which is the cause of 60% of all liver cancer in the world. It only takes 3 shots to protect yourself and those you love against Hepatitis B for a lifetime.

With more than one billion doses given throughout the world, medical and scientific studies have shown the Hepatitis B vaccine to be one of the safest vaccines ever made.

Is the Hepatitis B vaccine safe during pregnancy?

Yes. The Hepatitis B vaccine is safe to be administered during pregnancy. Please remember that even if a mother receives the Hepatitis B vaccine during pregnancy, her baby will have to be vaccinated after birth. The protective antibodies are not transmitted from the mother to her baby.

Therefore, all babies should receive the birth dose of the Hepatitis B vaccine. However, this is particularly critical for babies born to mothers living with chronic Hepatitis B.

Can I catch Hepatitis B from the vaccine?

No. You cannot get hepatitis B from the vaccine because it does not contain any live virus or blood products. The vaccine is made from a synthetic yeast product in a laboratory. The most common side effects are redness and soreness in the arm where the shot is given.

If I started the vaccine series but didn't complete my 2nd or 3rd dose on schedule, do I have to start over?

No, there is no need to restart the series. If the series is interrupted after the first dose, the second dose should be given as soon as possible, and the third dose at least 2 months after the second. If only the third dose is delayed, it should be given as soon as possible.

I received my vaccine years ago--am I still protected?

If it has been years since you have been vaccinated, you may need or may request a Hepatitis B surface antibody titer blood test to confirm that you are still protected. A person is considered protected if they have a positive anti-HBs or HBsAb test result greater than 10 mIU/mL. Sometimes these test results are under 10 and there is concern whether these low levels will still provide protection against Hepatitis B. Anti-HBs or HBsAb test results can decrease over time, but an individual can still be protected even if the test results are less than 10 mIU/mL.

If your test results are low, your doctor may recommend a booster shot or a repeat of the series. If you confirm you completed the vaccine series, you can get a booster dose of the vaccine. Your surface antibody level will be tested again 1 or 2 months after the booster. If the blood test result is greater than 10 mIU/mL, then you are protected and will not require an additional booster shot in the future. (Ongoing studies show continued immunity for 30+ years) If a booster shot does not result in a level greater than 10, then complete the remaining two-doses of the vaccine series and recheck the levels again after 1-2 months. Retain a copy of the anti-HBs titer test as proof of protection.

Should I get the Hepatitis B vaccine if I have a chronic HBV infection or have recovered from a past infection?

No. The Hepatitis B vaccine is a preventive vaccine. People who have a current infection or have recovered from a past infection receive no benefit from the Hepatitis B vaccine series, though there is no risk to receiving the series.

The Hepatitis B vaccine is important for family members, sexual partners and close household contacts. Individuals should be tested and vaccinated if they do not have a current infection or have not recovered from a past infection.

Liver Cancer

What is the likelihood that someone infected with hepatitis B will develop liver cancer?

Individuals chronically infected with Hepatitis B, who were infected at birth, and who do not receive any medical intervention or treatment, can have up to a 25% lifetime risk of developing liver cancer. The risk is highest for people with other risk factors – such as people who have cirrhosis, or a family history of liver cancer. The annual risk of developing liver cancer among people with Hepatitis B is less than 1% in people without cirrhosis and 2-4% in people with cirrhosis. However, the risk of liver cancer can be significantly reduced with early detection of Hepatitis B virus, treatment with antivirals if advised by your doctor, and making healthy lifestyle choices. Careful and early management of a chronic Hepatitis B infection can avoid the progression of liver disease to cirrhosis, where there is the greatest risk for liver cancer. Regular screening for liver cancer, also known as liver cancer surveillance, can detect cancers early when they may be curative. Know your status and get tested for Hepatitis B. Please keep in mind that feeling healthy and having no symptoms DOES NOT mean there is no infection, or consequent serious liver problems. So, ask your doctor to test you for Hepatitis B, and if you’re living with Hepatitis B, ask your doctor about liver cancer surveillance.

I’m living with Hepatitis B, what should I do to reduce my risk of developing liver cancer?

There are several ways you could reduce your risk of liver cancer. First, start by learning about Hepatitis B, and what people living with Hepatitis B should do regularly to maintain a healthy liver.

  • Make sure to visit your doctor regularly to check your liver enzymes (ALT/AST), viral load (HBV DNA), platelet count and other liver function tests along with an ultrasound (every 6 months or at least annually). Ask your doctor about using simple blood tests to look at your Fibrosis-4 Index (FIB-4) for liver fibrosis.
  • Discuss treatment with antivirals with your doctor.  (First line antivirals include tenofovir (TDF), tenofovir (TAF) and entecavir). These antivirals are effective at suppressing and controlling the virus, reducing liver damage resulting from the inflammatory response to the virus, and lowering the risk of developing liver cancer. Learn here about other important questions to ask your doctor.
  • Make healthy lifestyle choices! You can make lifestyle choices that will put you in control during your journey with Hepatitis B. You can support your liver by not drinking alcohol, not smoking and maintaining a healthy weight by eating a well-balanced diet and getting regular exercise. Here is some information on how to maintain a healthy liver. Also be very careful with other prescription and over-the-counter medications or herbal remedies and supplements. Herbal remedies and supplements are not tested or regulated for purity and safety. Some supplements and herbs can do more harm than good.
  • Join the Hep B Community! There, you will be able to engage online in discussions with scientists, clinicians, and people living with chronic hepatitis B from around the world, exchanging ideas, and experiences and knowledge about hepatitis B.

Clinical Trials

My country does not have a clinical trial for Hepatitis B. Is it possible to travel to another country to participate?

Volunteering for a clinical trial is noble and valuable. Participating in a clinical trial can be a great opportunity to benefit from the latest advances, often with medication and expensive tests paid for if accepted into the study. However, it is common that clinical trials are run only in certain countries. This is often because the researcher has permission (or funding) to operate in certain countries, or because this is where the study team is based. In other situations, the country where you live may not have properly equipped and validated laboratories or may not approve the study because of regulatory restrictions.

Please keep in mind that participating in a clinical trial usually involves a number of visits to the medical facility to administer treatment or for follow up tests. This makes participating in clinical trials practically impossible for those living outside of a country that is a trial site.

Additionally, countries where clinical trials are conducted, don’t grant entry visas for those willing to participate in clinical trials based only on participation in a clinical trial.

Although this may sound disappointing, you should not lose hope, as regulations and research funding opportunities can sometimes change.

While you wait for an opportunity to participate in a clinical trial, or for a functional cure to be discovered, it is important to ensure your liver and general health are in the best health possible. This includes seeing a knowledgeable doctor about your hepatitis B infection and liver health and maintaining a healthy lifestyle by eating a well-balanced diet and exercising regularly. If treatment with currently available antivirals such as tenofovir and entecavir are advised, please do consider the importance of these treatments on your liver health. Your goal is to keep your liver as healthy as possible for when there is a functional cure available for hepatitis B.

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