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Cited by 1,100

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Hepatitis B Vaccine: Demonstration of Efficacy in a Controlled Clinical Trial in a High-Risk Population in the United States

Szmuness, Wolf, Stevens, Cladd E., Harley, Edward J., Zang, Edith A., Oleszko, William R., William, Daniel C., Sadovsky, Richard, Morrison, John M., Kellner, Aaron·1980·New England Journal of Medicine

Abstract

We assessed the efficacy of an inactivated hepatitis B vaccine in a placebo-controlled, randomized, double-blind trial in 1083 homosexual men known to be at high risk for hepatitis B virus infection. The vaccine was found to be safe and the incidence of side effects was low. Within two months, 77% of the vaccinated persons had high levels of antibody against the hepatitis B surface antigen. This rate increased to 96% after the booster dose and remained essentially unchanged for the duration of the trial. For the first 18 months of follow-up, hepatitis B or subclinical infection developed in only 1.4 to 3.4% of the vaccine recipients as compared with 18 to 27% of placebo recipients (P < 0.0001). The reduction of incidence in the vaccinees was as high as 92.3%; none of the vaccinees with a detectable immune response to the vaccine had clinical hepatitis B or asymptomatic antigenemia. A significant reduction of incidence was already seen within 75 days after randomization; this observation suggests that the vaccine may be efficacious even when given after exposure.

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Metadata

Authors
Szmuness, W., Stevens, C. E., Harley, E. J., Zang, E. A., Oleszko, W. R., William, D. C., Sadovsky, R., Morrison, J. M., & Kellner, A.
Venue
New England Journal of Medicine
Published
1980-10-09
Volume
303
Issue
15
Pages
833-841
ISSN
  • 0028-4793 (ISSN-L)
  • 1533-4406
OpenAlex
W3144051925
Cited by
1,100
References
0
FWCI
90.45
Type
journal article
Language
en
Open access
closed

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This page
CoChat. (2026). Citation check: Hepatitis B Vaccine: Demonstration of Efficacy in a Controlled Clinical Trial in a High-Risk Population in the United States. https://app.cochat.ai/papers/10.1056/nejm198010093031501
The paper
Szmuness, W., Stevens, C. E., Harley, E. J., Zang, E. A., Oleszko, W. R., William, D. C., Sadovsky, R., Morrison, J. M., & Kellner, A. (1980). Hepatitis B Vaccine: Demonstration of Efficacy in a Controlled Clinical Trial in a High-Risk Population in the United States. New England Journal of Medicine. https://doi.org/10.1056/nejm198010093031501

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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.