A recombinant influenza virus vaccine expressing the F protein of respiratory syncytial virus

A recombinant influenza virus vaccine expressing the F protein of respiratory syncytial virus Infections with influenza and respiratory syncytial virus (RSV) rank high among the most common human respiratory diseases worldwide. Previously, we developed a replication-incompetent influenza virus by replacing the coding sequence of the PB2 gene, which encodes one of the viral RNA polymerase subunits, with that of a reporter gene. Here, we generated a PB2-knockout recombinant influenza virus expressing the F protein of RSV (PB2-RSVF virus) and tested its potential as a bivalent vaccine. In mice intranasally immunized with the PB2-RSVF virus, we detected high levels of antibodies against influenza virus, but not RSV. PB2-RSVF virus-immunized mice were protected from a lethal challenge with influenza virus but experienced severe body weight loss when challenged with RSV, indicating that PB2-RSVF vaccination enhanced RSV-associated disease. These results highlight one of the difficulties of developing an effective bivalent vaccine against influenza virus and RSV infections. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Virology Springer Journals

A recombinant influenza virus vaccine expressing the F protein of respiratory syncytial virus

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Publisher
Springer Vienna
Copyright
Copyright © 2014 by Springer-Verlag Wien
Subject
Biomedicine; Virology; Medical Microbiology; Infectious Diseases
ISSN
0304-8608
eISSN
1432-8798
D.O.I.
10.1007/s00705-013-1932-z
Publisher site
See Article on Publisher Site

References

  • Lack of antibody affinity maturation due to poor Toll-like receptor stimulation leads to enhanced respiratory syncytial virus disease
    Delgado, MF; Coviello, S; Monsalvo, AC; Melendi, GA; Hernandez, JZ
  • Palivizumab efficacy in preterm infants with gestational age < or = 30 weeks without bronchopulmonary dysplasia
    Grimaldi, M; Gouyon, B; Sagot, P; Quantin, C; Huet, F

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