Rapid development of an efficacious swine vaccine for novel H1N1.
Recombinant hemagglutinin (HA) from a novel H1N1 influenza strain was produced using an alphavirus replicon expression system. The recombinant HA vaccine was produced more rapidly than traditional vaccines, and was evaluated as a swine vaccine candidate at different doses in a challenge model utilizing the homologous influenza A/California/04/2009 (H1N1) strain. Vaccinated animals showed significantly higher specific antibody response, reduced lung lesions and viral shedding, and higher average daily gain when compared to non-vaccinated control animals. These data demonstrate that the swine vaccine candidate was efficacious at all of the evaluated doses.
Vander Veen
Ryan
R
Harrisvaccines, Inc., Ames, IA, USA.
Kamrud
Kurt
K
Mogler
Mark
M
Loynachan
Alan T
AT
McVicker
Jerry
J
Berglund
Peter
P
Owens
Gary
G
Timberlake
Sarah
S
Lewis
Whitney
W
Smith
Jonathan
J
Harris
D L Hank
DL