Hepatitis B Essay

26693 Words107 Pages
This PDF is available from The National Academies Press at http://www.nap.edu/catalog.php?record_id=13164 Adverse Effects of Vaccines: Evidence and Causality ISBN 978-0-309-21435-3 865 pages 6x9 HARDBACK (2012) Kathleen Stratton, Andrew Ford, Erin Rusch, and Ellen Wright Clayton, Editors; Committee to Review Adverse Effects of Vaccines; Institute of Medicine Visit the National Academies Press online and register for... Instant access to free PDF downloads of titles from the NATIONAL ACADEMY OF SCIENCES NATIONAL ACADEMY OF ENGINEERING INSTITUTE OF MEDICINE NATIONAL RESEARCH COUNCIL 10% off print titles Custom notification of new releases in your field of interest Special offers and discounts Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the National Academies Press. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Request reprint permission for this book Copyright © National Academy of Sciences. All rights reserved. Adverse Effects of Vaccines: Evidence and Causality 8 Hepatitis B Vaccine INTRODUCTION Hepatitis B virus (HBV) is a 42-nm spherical particle that replicates primarily in the liver of infected individuals (Mast and Ward, 2008). In infected persons, the virus can be found in most bodily fluids, with the highest infectious concentration in the serum and with transmittable levels also found in semen and saliva (Alter et al., 1977; Bancroft et al., 1977; CDC, 2006; Scott et al., 1980). The virus is very hardy and can live on surfaces for more than 7 days (CDC, 2006). Among adults, the primary modes of transmission are sexual intercourse with persons with chronic lifelong infection (carriers) and percutaneous exposure to the virus due to intravenous drug usage or occupational exposures to needles and other sharp objects

More about Hepatitis B Essay

Open Document