Journal
JOURNAL OF VIROLOGICAL METHODS
Volume 150, Issue 1-2, Pages 57-62Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jviromet.2008.03.002
Keywords
Yellow Fever 17DD virus; high pressure; virus inactivation
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The successful Yellow Fever (YF) vaccine consists of the live attenuated 17D-204 or 17DD Viruses. Despite its excellent record of efficacy and safety, serious adverse events have been recorded and influenced extensive vaccination in endemic areas. Therefore, alternative strategies should be considered, which may include inactivated whole virus. High hydrostatic pressure has been described as a method for viral inactivation and vaccine development. The present study evaluated whether high hydrostatic pressure would inactivate the YF 17DD virus. YF 17DD virus was grown in Vero cells in roller bottle cultures and subjected to 310 MPa for 3 h at 4 degrees C. This treatment abolished YF infectivity and eliminated the ability of the virus to cause disease in mice. Pressure-inactivated virus elicited low level of neutralizing antibody titers although exhibited complete protection against an otherwise lethal challenge with 17DD virus in the murine model. The data warrant further development of pressure-inactivated vaccine against YF. (C) 2008 Elsevier B.V. All rights reserved.
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