本帖最后由 StephenW 于 2014-11-14 13:38 编辑
Durability of Antibody Response against Hepatitis B Virus in Healthcare Workers Vaccinated as Adults - Naveen Gara1,*,
- Adil Abdalla1,*,
- Elenita Rivera1,
- Xiongce Zhao2,
- Jens M. Werner1,**,
- T Jake Liang1,
- Jay H. Hoofnagle3,
- Barbara Rehermann1, and
- Marc G. Ghany1
+ Author Affiliations - 1Liver Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases
- 2Biostatistics, Intramural Research, National Institute of Diabetes and Digestive and Kidney Diseases
- 3Liver Disease Research Branch, Division of Digestive Diseases and Nutrition, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland, United States
- Corresponding Author: Marc Ghany, MD, MHSc, Liver Diseases Branch, NIDDK, NIH, Bldg 10, Room 9B-16, 10 Center Drive, Rm: 9B16, Bethesda, MD 20892-1800, Telephone: 301-402-5115, Fax: 301-402-0491, Email: [email protected]
-
↵* Naveen Gara and Adil Abdalla, contributed equally to this manuscript. -
↵** Current address: Klinik and Poliklinik für Chirurgie, Universitätsklinikum Regensburg, Regensburg, Germany
Abstract Background. Follow-up studies of recipients of hepatitis B vaccine from endemic areas have reported loss of antibody to hepatitis B surface antigen (anti-HBs) in a high proportion of persons vaccinated at birth. In contrast, the long-term durability of antibody in persons vaccinated as adults in non-endemic areas is not well-defined. Aims. To assess the durability of anti-HBs among healthcare workers (HCWs) vaccinated as adults and response to a booster among those without protective levels of antibody. Methods. Adult HCWs aged 18-60 at the time of initial vaccination were recruited. All were tested for hepatitis B surface antigen (HBsAg), antibody to hepatitis B core antigen (anti-HBc), and anti-HBs level. HCWs with anti-HBs <12 mIU/mL were offered a booster and levels were measured on days 1, 7 and 21 afterwards. Results. Anti-HBs levels were <12 mIU/mL in 9/50 (18%), 13/50 (26%) and 14/59 (24%) HCWs 10-15, 16-20 and >20 years post-vaccination, respectively, (p=ns). Four HCWs were anti-HBc positive; none had HBsAg. By logistic regression, older age at vaccination was the only predictor of inadequate anti-HBs level (p=0.0005). 34 of 36 subjects with inadequate anti-HBs levels received a booster and 32 (94%) developed levels >12 mIU/mL within 3 weeks. Conclusion. Anti-HBs levels decrease after 10 to 31 years and fall below a level considered protective in ∼25% of cases. The rapid and robust response to a booster vaccine suggests a long-lasting amnestic response. Hepatitis B vaccination provides long-term protection against hepatitis B and booster vaccination does not appear to be necessary in HCWs.
- Received July 24, 2014.
- Accepted October 24, 2014.
- Published by Oxford University Press on behalf of the Infectious Diseases Society of America 2014. This work is written by (a) US Government employee(s) and is in the public domain in the US.
|