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Journal of Virology, February 2005, p. 1954-1957, Vol. 79, No. 3
0022-538X/05/$08.00+0 doi:10.1128/JVI.79.3.1954-1957.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.
Retrovirus Research Laboratory, Institute of Comparative Medicine, University of Glasgow, Glasgow, United Kingdom,1 Department of Pathobiology, Institute of Virology, University of Veterinary Medicine, Vienna, Austria,2 The Scripps Research Institute, La Jolla, California,3 Retrovirus Center and Virology Section, Department of Experimental Pathology, University of Pisa, Pisa, Italy,4 Department of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania5
Received 11 June 2004/ Accepted 17 August 2004
An inactivated virus vaccine was prepared from a pathogenic isolate of feline immunodeficiency virus containing a mutation that eliminated an endocytic sorting signal in the envelope glycoprotein, increasing its expression on virions. Cats immunized with inactivated preparations of this modified virus exhibited strong titers of antibody to Env by enzyme-linked immunosorbent assay. Evidence of protection following challenge demonstrated the potential of this approach to lentiviral vaccination.
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