The hepatitis B vaccine schedule for children depends on the country and the child’s medical history. Many programs give a first dose soon after birth, followed by two or three more doses during infancy. In India’s national programme, babies receive a birth dose within 24 hours, then hepatitis B protection through the pentavalent vaccine at 6, 10 and 14 weeks. Children who missed doses can usually catch up without restarting.
Hepatitis B is a viral infection that affects the liver and can lead to long-term liver disease. Vaccination helps protect children from infection, including infection passed from a parent to a baby during birth. Although the overall goal is the same worldwide, the timing and number of doses vary between countries and vaccine products. A child's vaccination card and local immunization schedule help determine when each dose is due.
Why is the hepatitis B vaccine given early in life?
The hepatitis B virus can pass from an infected mother to her baby during childbirth. Infection acquired during infancy is particularly concerning because it has a greater chance of becoming a long-term infection than infection acquired later in life. Vaccination soon after birth helps reduce this risk and begins the process of building protection against the virus.
The World Health Organization (WHO) recommends that all infants receive their first hepatitis B vaccine dose as soon as possible after birth, preferably within 24 hours. Two or three additional doses should follow to complete the primary vaccination series, according to the country's immunization programme.
What is the routine hepatitis B vaccine schedule for children?
There is no single timetable used in every country. Some programmes give three doses, while others give a birth dose followed by three additional doses. The vaccine may also be included in combination vaccines that protect against several diseases with one injection. The following examples show how the schedule is organized in different settings.
World Health Organization guidance
The WHO recommends a hepatitis B birth dose, ideally administered within 24 hours, followed by two or three additional doses. The timing of these later doses depends on the country's routine childhood immunization schedule. Completing the full series is important because the birth dose alone does not replace the remaining recommended vaccinations.
Hepatitis B vaccine schedule in India
India's Ministry of Health and Family Welfare Routine Immunization Manual lists the following hepatitis B-containing vaccination schedule under the National Immunization Schedule:
- At birth: One hepatitis B birth dose, preferably within 24 hours of delivery.
- At 6 weeks: The first dose of pentavalent vaccine, which includes hepatitis B protection.
- At 10 weeks: The second dose of pentavalent vaccine.
- At 14 weeks: The third dose of pentavalent vaccine.
This schedule provides four hepatitis B-containing doses in total: one birth dose and three doses through the pentavalent vaccine. The pentavalent vaccine also protects against diphtheria, pertussis, tetanus and Haemophilus influenzae type b disease.
Hepatitis B vaccine schedule in the United States
The U.S. Centers for Disease Control and Prevention (CDC) routine childhood schedule lists three hepatitis B vaccine doses at birth, at 1–2 months, and at 6–18 months. The final dose must be given when the child is at least 24 weeks old. A fourth dose may be appropriate when a combination vaccine containing hepatitis B vaccine is used after the birth dose.
These examples should not be combined into one schedule. Parents should follow the immunization programme applicable to their child's location and healthcare circumstances, particularly when the child was born prematurely, has a low birth weight, or has a history of hepatitis B exposure.
What if the mother has hepatitis B or her test result is unknown?
A newborn whose mother has hepatitis B needs additional protection because transmission can occur during childbirth. According to the CDC guidance on special vaccination situations, infants born to mothers who test positive for hepatitis B surface antigen should receive the hepatitis B vaccine and hepatitis B immune globulin (HBIG) within 12 hours of birth. These are different products and must be administered at separate injection sites.
HBIG provides antibodies that help offer immediate protection, while the vaccine helps the baby's immune system build its own protection. If the mother's hepatitis B status is unknown at delivery, the maternity team should arrange prompt testing and manage the newborn's vaccination urgently. Whether HBIG is needed depends on the clinical circumstances and the applicable guidance.
Infants with a birth weight below 2,000 grams may require a modified vaccination schedule when the mother has hepatitis B. Additional doses and follow-up testing may be necessary. Parents should make sure the baby's healthcare team knows the mother's hepatitis B test result and the child's birth weight.
What should you do if your child misses a vaccine dose?
Missing a scheduled dose does not usually mean that the child must start the hepatitis B vaccine series again. The CDC catch-up immunization schedule explains that a vaccine series does not need to be restarted simply because more time has passed between doses.
The next step is to review the child's vaccination record with a healthcare professional. The appropriate catch-up plan depends on the child's age, the number of doses already received, the dates of previous injections and the schedule used in that country. Minimum intervals between doses still matter, so an overdue dose should be arranged using the appropriate catch-up guidance.
If you are unsure whether your child received the birth dose or any later doses, take the vaccination card or available medical records to the next appointment. If records cannot be found, the healthcare professional can assess the situation and advise on completing the series.
Can hepatitis B vaccine be given with other childhood vaccines?
Yes. Hepatitis B vaccine can be included in combination vaccines that protect against several infections. This approach reduces the number of separate injections a child may need while allowing the recommended vaccinations to be given on schedule.
For example, India's national programme uses pentavalent vaccine for the hepatitis B-containing doses at 6, 10 and 14 weeks. Other countries may use different combination products, depending on which vaccines are licensed and included in their immunization programmes. The name and date of each vaccine should be recorded so the healthcare professional can confirm that the child has completed the appropriate series.
What side effects can children experience after vaccination?
The hepatitis B vaccine is generally well tolerated. The CDC's hepatitis B vaccine safety information describes possible reactions that are usually temporary and may include:
- Pain, redness or swelling where the injection was given.
- A mild fever.
- Tiredness or reduced appetite.
- Irritability in infants and young children.
Many children have no noticeable side effects. If a reaction persists, worsens or concerns you, contact the child's healthcare professional. Severe allergic reactions are rare, but difficulty breathing or swelling of the face or throat after vaccination requires emergency medical care.
How can parents keep their child's vaccination schedule on track?
Keep the child's vaccination record in a safe place and bring it to every immunization appointment. Ask the healthcare professional to document the vaccine name, date given and next recommended appointment. If your child receives combination vaccines, confirm that the doses are recorded accurately as part of the hepatitis B series.
Families who move between countries should have the child's vaccination records reviewed rather than automatically starting a new series. Different countries use different products and schedules, so the receiving healthcare professional should check previous doses against local recommendations and decide whether any additional vaccination is needed.