Trevor James
Hepatitis B is a blood-borne virus that attacks the liver and can lead to serious health problems such as liver damage or cancer. The vaccine for Hepatitis B is safe and effective and is recommended for all newborns, children, and adults. In the United States, the hepatitis B vaccine was first approved in 1981 and was initially targeted at adults at high risk of infection. However, in 1991, the CDC recommended universal use of the vaccine by all children, and state health departments began mandating the vaccine for school and daycare attendance. By 1997, 35 states required the hepatitis B vaccine for school entry, and by 2021, this number had increased to 48 states. Today, most newborns in the United States are vaccinated against hepatitis B, and the vaccine is often required for school attendance, although the specific requirements vary by state.
| Characteristics | Values |
|---|---|
| When did Hepatitis B vaccine become mandatory for school | By 1997, 35 states had regulations requiring children to receive three doses of the Hepatitis B vaccine to attend daycare or school. By 2021, 48 states and Washington, D.C., had similar regulations. |
| When was the vaccine approved | The Hepatitis B vaccine was approved in 1981, with a safer, genetically engineered version released in 1986. |
| Who recommends the vaccine | The CDC recommends the Hepatitis B vaccine for all newborns, children up to 18, and adults up to 59 years of age. The World Health Organization (WHO) also recommends the vaccine for newborns and children up to 18. |
| Who should get the vaccine | All persons may be at risk of Hepatitis B infection during their lifetime, so everyone should consider getting vaccinated. Infants born to infected mothers and adults with diabetes or at high risk of infection due to their jobs, lifestyle, living situations, or country of birth should especially consider it. |
| How many doses are required | The Hepatitis B vaccine is typically given in three or four doses over a six-month period. |
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What You'll Learn
Hepatitis B vaccine history
Hepatitis B is a virus with a long history, mentioned in writings dating as far back as 400 BCE. In 1883, German shipyard workers developed jaundice after being vaccinated with smallpox material that included human lymph. In the 1960s, researchers discovered the hepatitis B surface antigen, and the virus was fully identified in 1970. By the 1940s, hepatitis A and B were recognised as separate diseases.
The first hepatitis B vaccine was approved in the United States in 1981. This first-generation vaccine was plasma-derived and was developed in France and the USA in the early 1980s. However, concerns grew in Europe and North America about the possibility of the plasma being contaminated with other blood-borne viruses, such as HIV. Although no cases of HIV or any other infection due to the hepatitis B vaccine have been documented, these fears limited the use of the vaccine.
In 1986, a second generation of genetically engineered (or DNA recombinant) hepatitis B vaccines was developed. Both versions of the vaccine were created by Maurice Hilleman and his team. The recombinant version is on the World Health Organization's List of Essential Medicines.
In 1990, CDC officials expressed concerns that targeting high-risk populations was an ineffective strategy. They stated that high-risk populations did not understand the risk of hepatitis B or the need for the vaccine, and that the cost of the vaccine was a barrier for those who couldn't afford it. Following the 1991 CDC recommendation for universal use of the hepatitis B vaccine by all children, state health department officials began issuing mandates requiring children to show proof of vaccination to attend daycare or school. By the end of 1997, 35 states had regulations requiring children to receive three doses of the hepatitis B vaccine. As of 2021, 48 states and Washington, D.C., required three doses of the vaccine for school and/or daycare entry.
Vaccination is the most effective way to control and prevent acute and chronic hepatitis B. The World Health Organization recommends a pentavalent vaccine, combining vaccines against diphtheria, tetanus, pertussis, Haemophilus influenzae type B, and hepatitis B. Globally, 190 countries have introduced hepatitis B vaccination into their national childhood immunization programs, with excellent safety, immunogenicity, and effectiveness. The hepatitis B vaccine is the first anti-cancer vaccine, as it can help prevent liver cancer.
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CDC recommendations
The CDC recommends the hepatitis B vaccine for all newborns, children up to 18 years of age, and adults at higher risk of infection. This includes adults living with diabetes and those at high risk due to their jobs, lifestyle, living situations, or country of birth. The CDC also recommends that all infants receive the vaccine at birth.
In 1991, the CDC recommended the universal use of the hepatitis B vaccine for all children. Following this recommendation, state health departments began mandating that children show proof of vaccination to attend daycare or school. By the end of 1997, 35 states required children to receive three doses of the vaccine for school entry. As of 2021, 48 states and Washington, D.C., had similar regulations.
The CDC's Advisory Committee on Immunization Practices (ACIP) provides specific guidelines for hepatitis B vaccination. They recommend vaccination for:
- All infants at birth
- Unvaccinated children younger than 19 years of age
- Adults aged 19 to 59
- Adults 60 years and older with risk factors or those seeking protection from hepatitis B
The CDC also emphasizes that pre-vaccination testing should not be a barrier to vaccination, especially for populations with limited access to healthcare. Clinicians should offer vaccination even if testing is refused or not feasible, and they should continue to offer testing at future visits.
Hepatitis B vaccination typically involves two or three shots, depending on the vaccine brand. The shots are administered over a six-month period. The first shot is given at birth or any time thereafter. The second shot is given at least one month after the first, and the third shot is administered at least four months after the first and two months after the second.
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State mandates
State health department officials began issuing mandates requiring children to show proof of receiving three doses of the hepatitis B vaccine to attend daycare or school following the CDC's 1991 recommendation for universal use. By the end of 1997, 35 states had regulations requiring children to get three doses of the hepatitis B vaccine, and by 2000, 47 states had mandated the vaccine for all schoolchildren. As of 2021, 48 states and Washington, D.C., required three doses of the hepatitis B vaccine for school and/or daycare entry.
The hepatitis B vaccine is usually given in three or four doses over six months. The CDC recommends the hepatitis B vaccine for all newborns, children up to 18, adults 19–59, and adults 60+ who are at high risk for infection. The World Health Organization (WHO) also recommends the hepatitis B vaccine for all newborns, children up to 18, and adults at higher risk for infection.
The hepatitis B vaccine is safe and effective and provides lifetime protection against preventable chronic liver disease. It is the first "anti-cancer" vaccine as it prevents hepatitis B, the leading cause of liver cancer worldwide. The vaccine is important as hepatitis B can become chronic and lead to serious health problems like liver damage or cancer.
While vaccination rates for infants, children, and adolescents were estimated at over 91% in 2018, only 30% of adults had received all three doses of the hepatitis B vaccine. Adults aged 19–49, who are considered most at risk for developing hepatitis B, have a vaccination rate of 40.3%.
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Vaccination rates
However, vaccination rates among adults are lower. As of 2018, only 30% of adults had received all three doses of the hepatitis B vaccine. The rate is slightly higher, at 40.3%, for adults aged 19 to 49, who are considered most at risk for developing hepatitis B. This highlights the importance of continued efforts to encourage vaccination among adults, especially those in high-risk categories.
To improve adult vaccination rates, programs such as the Merck Vaccine Patient Assistance Program and the GSK Patient Assistance Program offer financial assistance to those who need help with the cost of vaccines. Additionally, the Advisory Committee on Immunization Practices (ACIP) has made recommendations for hepatitis B vaccination among adults aged 19-59 and those 60 and older with risk factors or those seeking protection.
Vaccination requirements for childcare and schools have also played a role in increasing vaccination rates. By the end of 1997, 35 states mandated the hepatitis B vaccine for school attendance, and this number has increased over time. As of 2021, 48 states and Washington, D.C., required the hepatitis B vaccine for school and/or daycare entry. These mandates have been instrumental in ensuring that children are protected against hepatitis B and have contributed to the overall increase in vaccination rates.
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Hepatitis B transmission
In 1991, the CDC recommended the universal use of the hepatitis B vaccine for all children. Following this, state health department officials began requiring children to show proof of three doses of the hepatitis B vaccine to attend daycare or school. By the end of 1997, 35 states had regulations requiring children to receive three doses of the vaccine. As of 2021, 48 states and Washington, D.C., mandated three doses of the hepatitis B vaccine for school and/or daycare entry.
Hepatitis B is a liver disease caused by the hepatitis B virus (HBV). It is transmitted through infected blood, semen, and certain other body fluids, even in microscopic amounts. The transmission can occur through direct contact with open wounds, sharing personal items like razors or toothbrushes, and during unprotected sex. It can also be passed from mother to child during childbirth, although this can be prevented with antiviral medicines and the vaccine shortly after birth.
Hepatitis B is not transmitted casually. It cannot be spread through toilet seats, doorknobs, sneezing, coughing, hugging, or sharing meals with an infected person. However, it can be spread through body piercing, tattooing, acupuncture, and nail salons if sterile needles and equipment are not used. Additionally, sharing sharp instruments, such as razors, toothbrushes, nail clippers, earrings, and body jewelry, can be a source of infection.
The risk of hepatitis B transmission is higher in certain groups, including individuals born in or to parents from countries where hepatitis B is common, such as Asia, Africa, South America, the Pacific Islands, Eastern Europe, and the Middle East. Other high-risk groups include kidney dialysis patients, cancer patients, healthcare workers, people who inject drugs, and those in prisons or other closed settings.
The best way to prevent hepatitis B infection is through vaccination. The hepatitis B vaccine is typically given in three or four doses over six months and provides long-term protection. Early intervention is crucial, and individuals exposed to the virus should ideally receive the vaccine within 24 hours.
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Frequently asked questions
Following the 1991 CDC recommendation for universal use of the hepatitis B vaccine by all children, state health department officials began issuing mandates requiring children to show proof of three doses of the hepatitis B vaccine to attend daycare or school. By the end of 1997, 35 states had regulations requiring children to get three doses of the hepatitis B vaccine.
The Hepatitis B vaccine is usually given in three or four doses over a six-month period. The CDC recommends the hepatitis B vaccine for all newborns, children up to age 18, adults 19-59 years of age, and adults 60 and older who are at high risk for infection.
The Hepatitis B vaccine is safe and effective and provides lifetime protection against a preventable chronic liver disease. It is the first "anti-cancer" vaccine as it prevents hepatitis B, the leading cause of liver cancer worldwide.
