Title | A robust lentiviral pseudotype neutralisation assay for rabies and lyssavirus serology |
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Authors | Wright, E., Temperton, N.J., Weiss, R.A., McNabb, S., Lembo, T., Cleaveland, S., Marston, D.A., Horton, D.L., McElhinney, L.M. and Fooks, A.R. |
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Type | Conference paper |
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Abstract | The inflexibility of existing serological techniques for rabies can make it difficult to monitor the impact of current control strategies. We have developed a neutralisation assay that uses lentiviral pseudotypes (comprising the outer envelope of rabies virus, human immunodeficiency virus core and a packageable reporter gene) as antigen vectors. The assay can be used for vaccine evaluation, serosurveillance and antiviral screening in low-containment laboratories within developed and resource-limited countries. Post-vaccination serum antibody titres determined using the fluorescent antibody virus neutralisation assay and pseudotype assay show a specificity of 100%, sensitivity of 96.4% and strong correlation (r=0.85; p<0.001). To increase the assay’s utility we incorporated the envelope glycoprotein of lyssavirus isolates from genotypes 1-7 and a range of different reporter genes. Genotype 1 (CVS-11) pseudotypes were highly stable during freeze-thaw cycles and storage at room temperature suggesting the pseudotype assay is a suitable option for undertaking lyssavirus serosurveillance in areas most affected by these infections. |
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Year | 2009 |
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Conference | Rabies In The Americas XX |
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Publication dates |
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Published | 2009 |
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