Peer-reviewed veterinary case report
A Single Mutation at PB1 Residue 319 Dramatically Increases the Safety of PR8 Live Attenuated Influenza Vaccine in a Murine Model without Compromising Vaccine Efficacy.
- Journal:
- Journal of virology
- Year:
- 2015
- Authors:
- Cox, Andrew & Dewhurst, Stephen
- Affiliation:
- Department of Microbiology & Immunology · United States
Abstract
The live attenuated influenza vaccine (LAIV) is preferentially recommended for use in most children yet remains unsafe for the groups most at risk. Here we have improved the safety of a mouse-adapted live attenuated influenza vaccine containing the same attenuating amino acid mutations as in human LAIV by adding an additional mutation at PB1 residue 319. This results in a vaccine with a 20-fold decrease in protective efficacy and a 10,000-fold increase in safety.
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Search related cases →Original publication: https://pubmed.ncbi.nlm.nih.gov/26676793/