Department of Health Sciences, University of Florence , Florence, Italy.
Department of Experimental and Clinical Medicine, University of Florence , Florence, Italy.
Hum Vaccin Immunother. 2021 Feb 1;17(2):580-582. doi: 10.1080/21645515.2020.1810495. Epub 2020 Dec 3.
Both our research and that published by Sticchi et al. on immunological memory against hepatitis B virus (HBV) in health-care workers (HCWs) vaccinated as infants or adolescents confirm that in those testing negative after the primary course, one additional (fourth) booster dose is able to elicit an anti-HBs response in >85% subjects. The fifth and the sixth doses further contribute substantially to a high overall response rate. The rate of subjects showing an anamnestic response after the booster dose was almost six-fold higher in HCWs compared to chronic patients. Since universal vaccination in Italy resulted in a significant decrease in HBV infections, special attention and testing should be addressed to those affected by chronic diseases.
我们的研究和 Sticchi 等人发表的关于乙型肝炎病毒 (HBV) 免疫记忆的研究都证实,在基础免疫疗程后检测为阴性的人群中,再接种一剂(第四剂)加强针可以使超过 85%的受试者产生抗-HBs 反应。第五剂和第六剂进一步大大提高了总体反应率。与慢性患者相比,加强针后出现回忆反应的受试者在 HCWs 中的比例几乎高出六倍。由于意大利的乙肝疫苗普遍接种导致 HBV 感染显著减少,因此应特别关注和检测患有慢性疾病的人群。