Abstract
Background: Hepatitis B virus (HBV) infection is still a public issue in the world. Hepatitis B vaccination is widely used as an effective measure to prevent HBV infection. This large-sample study aimed to evaluate the positive rates of hepatitis B surface antibody (anti-HBs) in youth after booster vaccination.Methods: A total of 37788 participants were divided into two groups according to the baseline levels of anti-HBs before booster vaccination: the negative group (anti-HBs(−)) and the positive group (anti-HBs(+)). Participants were tested for anti-HBs levels after receiving a booster vaccine at 1 and 4 years.Results: The positive rates of anti-HBs were 34.50%, 73.80% and 67.32% before booster vaccination at 1 and 4 years after vaccination, respectively. At 4 years after the booster vaccination, the positive rates of 13–18 years were 47.54%, which was the lowest level among all youth age groups. In the anti-HBs(−) group, the positive conversion rates of anti-HBs were 74.62% at 1 year after receiving a booster vaccine, and 67.66% at 4 years after vaccination. In the anti-HBs(+) group, the positive maintenance rates of anti-HBs were 70.16% after 1 year, and 66.66% after 4 years. Compared with the baseline anti-HBs (+) group, the positive rates of the baseline anti-HBs(−) group were higher at 1 and 4 years after receiving the booster vaccine.Conclusion: The positive rates of anti-HBs declined over time, especially the positive maintenance rates were the lowest at age of 13–18 years.
Highlights
Hepatitis B virus (HBV) infection can cause both acute and chronic liver diseases [1,2]
According to World Health Organization (WHO) report, more than 250 million people were infected with HBV and resulted in 887000 deaths in 2015 [3]
The 2014 Chinese serosurvey report showed that the HBV infection rates of the population aged 1–29 years have been significantly reduced after decades of hepatitis B vaccination nationwide, especially for children under 5 years decreased by 97% [6]
Summary
Hepatitis B virus (HBV) infection can cause both acute and chronic liver diseases [1,2]. Hepatitis B vaccination is widely used as an effective measure to prevent HBV infection. This large-sample study aimed to evaluate the positive rates of hepatitis B surface antibody (anti-HBs) in youth after booster vaccination. Participants were tested for anti-HBs levels after receiving a booster vaccine at 1 and 4 years. Results: The positive rates of anti-HBs were 34.50%, 73.80% and 67.32% before booster vaccination at 1 and 4 years after vaccination, respectively. At 4 years after the booster vaccination, the positive rates of 13–18 years were 47.54%, which was the lowest level among all youth age groups. In the anti-HBs(−) group, the positive conversion rates of anti-HBs were 74.62% at 1 year after receiving a booster vaccine, and 67.66% at 4 years after vaccination. Conclusion: The positive rates of anti-HBs declined over time, especially the positive maintenance rates were the lowest at age of 13–18 years
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