Levels of Anti-HBs Antibody in HBV-Vaccinated Students Enrolled in the Faculty of Medicine, Dentistry and Health Professions of a Large Italian University

BACKGROUND Prophylaxis against hepatitis B virus (HBV) addressed to students of the faculties of health professions has received great attention. Objectives. The present study aims to assess vaccination coverage against hepatitis B in healthcare professionals in training. MATERIALS AND METHODS A retrospective study was carried out using data from the students of medicine, dentistry, and health professions. RESULTS 4180 vaccination certifications were examined through the internal database. Significant differences (<0.0001) emerge between the number of doses applied and the antibody level. 50.4% of the students have nonprotective antibody levels (<10 IU). The age of the first dose significantly influences the level of coverage, resulting in more coverage in those vaccinated with earlier onset (1-10 years). Antibody levels are not significantly different by type of course; the levels of noncoverage are present in 44.4% of the students of medicine and dentistry and in 50.6% among those belonging to the health professions. CONCLUSIONS This study represents one of the first experiences in Italy on vaccination against HBV and the relationship between doses of vaccination and antibody titer in the biomedical students that can configure a step forward in the real-time monitoring in order to establish a register of vaccination.