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Hepatitis B vaccine--what to expect.

Oral Surgery, Oral Medicine, and Oral Pathology

|October 1, 1983

Summary

A new hepatitis B vaccine, developed over 10 years, is safe and effective. This vaccine, made from inactivated virus surface proteins, protects most individuals aged 3 months and older for at least 5 years.

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Area of Science:

Hepatitis B research
Vaccine development
Immunology

Background:

Hepatitis B virus (HBV) infection poses a significant global health challenge.
Previous research laid the groundwork for developing an effective HBV vaccine.
The need for a safe and accessible HBV vaccine has been recognized for decades.

Purpose of the Study:

To report on the development and evaluation of a novel hepatitis B vaccine.
To assess the efficacy and safety of the new vaccine in a large human cohort.
To determine the duration of protective immunity conferred by the vaccine.

Main Methods:

The vaccine was developed using purified, inactivated, noninfectious surface proteins of the hepatitis B virus.
Derived from incomplete virus surface protein particles from plasma of HBV carriers.
Evaluated in over 13,000 human vaccinees through a three-dose regimen.

Main Results:

The hepatitis B vaccine demonstrated high efficacy and an excellent safety profile.
A three-dose vaccination regimen induced protective antibodies in the majority of individuals aged 3 months and older.
Immunity is expected to last for at least 5 years post-vaccination.
No serious adverse reactions were attributed to the vaccine.
The vaccine is stable for 3 years when refrigerated but is destroyed by freezing.

Conclusions:

The newly developed hepatitis B vaccine is highly effective and safe for individuals 3 months of age and older.
The established vaccination schedule provides long-lasting protection against hepatitis B.
This vaccine represents a significant advancement in the prevention of hepatitis B virus infection.

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