The Immunogenicity and Persistence of Booster Dose With Hepatitis B Vaccine in College Students

Overview

The anti-HBs produced after hepatitis B vaccination will decrease over time. College students are vaccinated with hepatitis B vaccine at birth, and their antibodies may have decreased significantly. In addition, college students are sexually active population, which has a high risk of HBV infection. It is necessary to study the anti-HBs level of college students, and analyze the strengthening immunization for this special group. This study will analyze the immunogenicity, immune persistence, and safety of booster dose of intramuscular 20 µg recombinant hepatitis B vaccines. Different booster vaccination including one-dose (0 month), two-dose (0, 1 months), or three-dose (0, 1, and 6 months) was given according to the antibody production level after booster vaccination among college students.

Participants are given booster dose of one-dose (0 month), two-dose (0, 1 months), or three-dose (0, 1, and 6 months) 20 µg recombinant hepatitis B vaccine according to the antibody production level. HBsAg and anti-HBs will be tested during the study period. Adverse reactions will be recorded after vaccination.

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Interventions