Chloe Ramirez
The hepatitis B vaccine is an injection that is typically administered in the arm and is recommended for nearly all babies at birth. The schedule for vaccination depends on the brand in use. For instance, Heplisav-B is administered in two doses, while Engerix-B, Recombivax HB, and Twinrix are administered in three doses. The World Health Organization (WHO) recommends a 0, 1, and 6-month schedule for the three-dose vaccines, although schedules may vary based on a country's immunization program. While it is generally recommended to complete a vaccination series with the same product, the CDC advises that, if the brand of the previous dose is unknown or unavailable, any available, age-appropriate hepatitis B product may be used to complete the series.
| Characteristics | Values |
|---|---|
| Number of doses | 2 or 3 (depending on brand) |
| Schedule | 0, 1, and 6-month schedule for 3-dose vaccines; 2 doses administered 1 month apart for 2-dose vaccines |
| Age | 3-dose vaccines are recommended for people under 20 years old; 2-dose vaccines are recommended for people 18 years old and above |
| Interchangeability | Vaccination series should be completed with the same product, but CDC guidance states that any available, age-appropriate hepatitis B product can be used to complete the series if the brand of the previous dose is unknown or unavailable |
| Common brands | Engerix-B, Heplisav-B, Recombivax HB, Twinrix, PreHevbrio (discontinued), Elovac B, Genevac B, Shanvac B, Euvax B, Pediarix, Vaxelis |
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What You'll Learn
Hepatitis B vaccine schedules
In terms of specific brands, Heplisav-B is a two-dose vaccine approved for use in adults aged 18 and older. The doses are administered intramuscularly, with a one-month interval between them. For other brands, such as Engerix-B, Recombivax HB, and Twinrix, a three-dose schedule is typically recommended, with doses given at 0, 1, and 6 months. However, alternative schedules, such as 0, 1, and 4 months or 0, 2, and 4 months, have also been shown to be effective.
Twinrix is also available as a four-dose vaccine that can be administered on an accelerated schedule to provide protection against both hepatitis A and B. Three doses are given within one month, followed by a booster shot at one year. This option is commonly chosen by individuals travelling outside the US on short notice. It is important to note that a booster dose at one year is necessary to ensure long-term protection for this particular vaccine.
While the hepatitis B vaccine is typically recommended for infants and children, adults up to the age of 59 can also receive the vaccine. Additionally, adults over 60 with risk factors for hepatitis B, such as having multiple sexual partners or seeking treatment for sexually transmitted infections, are also advised to get vaccinated.
It is worth noting that the hepatitis B vaccine is generally safe and has not been linked to Guillain-Barré syndrome. It is recommended even for pregnant or breastfeeding women and those with poor immune function, such as individuals with HIV/AIDS.
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Hepatitis B vaccine brands
The hepatitis B vaccine is generally administered as an injection into the arm, though it may also be injected into the thigh for infants and children under one year old. The vaccine is typically given in a series of two or three doses, depending on the brand. The World Health Organization (WHO) recommends a 0, 1, and 6-month vaccination schedule, though schedules may vary depending on the country's national immunization program.
There are several brands of the hepatitis B vaccine available, including:
- Heplisav-B (Dynavax): This is a two-dose vaccine approved for use in adults aged 18 and older. The doses are administered at least one month apart.
- Engerix-B (GSK): This is a three-dose vaccine that can be given on an accelerated four-dose schedule for maximum long-term protection. It is approved for use in people of all ages.
- Recombivax HB (Merck): This is a three-dose vaccine approved for use in people of all ages.
- Twinrix (GSK): This is a four-dose vaccine that provides protection against both hepatitis A and hepatitis B. It is often chosen for travellers outside the U.S. who need protection within a short period.
- PreHevbrio (VBI Vaccines): This brand was discontinued in November 2024 due to the manufacturer restructuring and discontinuing operations.
While it is recommended to complete a vaccination series with the same product, the CDC states that it is acceptable to complete a hepatitis B vaccination series with any available, age-appropriate hepatitis B product if the brand of the previous dose is unknown or unavailable. This flexibility is supported by the observation that using different manufacturers for the hepatitis B vaccine doses does not affect immunogenicity.
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Hepatitis B vaccination for infants
Hepatitis B is a viral infection that attacks the liver and can cause both acute and chronic disease. The hepatitis B vaccine is an injection generally given in the arm and as a three-dose series on a 0, 1, and 6-month schedule. The World Health Organization (WHO) recommends this schedule, although it may vary depending on the country's national immunization program. The vaccine is safe and effective and can be administered to infants intramuscularly into the anterolateral aspect of the thigh. It is recommended that infants receive a dose of the hepatitis B vaccine at birth, regardless of the HBV infection status of the birth parent. This is because infants with low birth weights have a decreased response to the vaccine, and it is estimated that 30-40% of chronic infections are acquired during childhood.
The hepatitis B vaccine is critical to reducing the risk of chronic hepatitis B later in life. It is estimated that 90% of infants infected will ultimately develop chronic symptoms later in life. Administering the vaccine within 24 hours of birth, known as a birth dose, is highly effective in preventing infection in newborns. The birth dose also serves as post-exposure immunoprophylaxis for infants born to a parent with HBV infection. A birth dose, along with hepatitis B immunoglobulin (HBIG), is 94% effective at preventing perinatal HBV transmission.
There are several brands of the hepatitis B vaccine, including Heplisav-B, Engerix-B, Recombivax HB, and Twinrix. The schedule for vaccination depends on the brand in use. Heplisav-B is administered on a 2-dose schedule, with doses separated by one month or four weeks. Engerix-B, Recombivax HB, and Twinrix are administered on a 3-dose schedule on a 0-, 1-, and 6-month schedule. Alternative schedules for Engerix-B and Recombivax HB have been shown to be effective, such as a 0, 1, and 4-month schedule. The third dose of these vaccines confers the maximum level of seroprotection and provides long-term protection.
In summary, hepatitis B vaccination for infants is crucial to preventing chronic hepatitis B infection and its serious complications, including liver cancer. The vaccine is safe and effective, and it is recommended that infants receive their first dose within 24 hours of birth, followed by additional doses according to the brand-specific schedule.
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Hepatitis B vaccination for adults
Hepatitis B is a common disease in the United States, and the Hepatitis B vaccine is recommended for nearly all babies at birth. The World Health Organization (WHO) recommends that the first dose of the hepatitis B vaccine be administered within 24 hours of birth, with additional shots at 1 month and 6 months of age. This vaccine series, when started at birth, will ensure protection against hepatitis B for life.
The hepatitis B vaccine is also recommended for all children and adults through the age of 59. Adults over 60 with risk factors for hepatitis B should also get vaccinated. Risk factors include being sexually active and not in a long-term, mutually monogamous relationship, or seeking treatment for a sexually transmitted infection. The vaccine is also recommended for healthcare workers.
The hepatitis B vaccine is administered as an injection, usually in the arm, and is generally given as a three-dose series on a 0, 1, and 6-month schedule. However, there are alternative schedules, including a two-dose series for the Heplisav-B vaccine, with doses given one month apart. The Twinrix vaccine is a four-dose vaccine that can be given on an accelerated schedule to provide protection against hepatitis A and B.
The hepatitis B vaccine is safe for use during pregnancy or while breastfeeding and can be administered at a doctor's office or pharmacy. It is produced with recombinant DNA techniques and has not been linked to Guillain-Barré syndrome. Serious side effects are uncommon, and the vaccine provides more than 90% protection against the disease.
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Hepatitis B vaccination for international travel
Hepatitis B is a vaccine-preventable disease that is still endemic in most countries in Asia. The risk of HBV infection is considerable for international travellers to high-endemic areas. Therefore, it is crucial to consider the timing and scheduling of the hepatitis B vaccine before embarking on international travel.
The hepatitis B vaccine is a safe and effective way to prevent potentially serious liver infections caused by the disease. The vaccine stimulates the body's immune system to produce antibodies, providing long-term protection against the virus. The standard hepatitis B vaccination regimen consists of three doses administered over a six-month period. The first dose is typically given within 24 hours of birth, with two or three more doses given one month apart. The World Health Organization (WHO) recommends a 0, 1, and 6-month vaccine schedule, though schedules may vary based on a country's national immunisation program.
There are several commercially available hepatitis B vaccines, including the recombinant Hepatitis B vaccine (Engerix-B®, GlaxoSmithKline) and the combined hepatitis A and B vaccine (Twinrix®, GlaxoSmithKline). The complete hepatitis B vaccination needs three doses of the vaccine. The usual schedule of the three intramuscular injections is to have the second and third administered 1 and 6 months after the first. An accelerated schedule may be used if there is insufficient time for pre-travel vaccination, with doses on days 0, 7, and 21, followed by a post-travel dose at 12 months.
The hepatitis B vaccine is recommended for all unvaccinated individuals travelling to areas with intermediate to high prevalence of chronic HBV infection. This includes countries in regions such as Sub-Saharan Africa, Asia (excluding Japan), the Middle East, Southern and Eastern Europe, South and Central America, the Caribbean, and the former Soviet Union. The US Centers for Disease Control and Prevention (CDC) recommends HBV vaccination for all unvaccinated people travelling to these areas, and it should be considered for all international travellers, regardless of destination, depending on the traveller's potential risk exposure. High-risk activities include unprotected sex with a new partner, getting a tattoo or piercing, or having any medical or dental procedures.
It is important to note that the hepatitis B vaccine brand name, manufacturer, and associated schedules for adults, children, and infants may vary between countries. However, the CDC states that you may complete a hepatitis B vaccination series with any available, age-appropriate hepatitis B product if the brand of the previous dose is unknown or unavailable.
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Frequently asked questions
The general recommendation is to complete a vaccination series with the same product. However, the CDC advises that if the brand of the previous dose is unknown or unavailable, you may complete a hepatitis B vaccination series with any available, age-appropriate hepatitis B product.
Hepatitis B vaccines with a 2-dose schedule include Heplisav-B (Dynavax), which is recommended for people aged 18 and older. Vaccines with a 3-dose schedule include Engerix-B, Recombivax HB, and Twinrix.
The third dose of a 3-dose vaccine series confers the maximum level of seroprotection and provides long-term protection. Therefore, it is important to follow the recommended schedule as closely as possible.
