An influenza vaccine adjuvanted with a sub-micron oil-in-water emulsion elicits significantly higher immune responses in human pediatric populations. Compared to an existing unadjuvanted pediatric influenza vaccine, the adjuvanted vaccines provided herein can induce in children a longer persistence of high serum antibody titers and also longer seroconversion and seroprotection. The improvement in immune responses is seen for both influenza A virus and influenza B virus strains, but it is particularly marked for influenza B virus. Moreover, while the existing vaccine provides poor immunity in children after a single dose, the adjuvanted vaccine provides high seroprotection rates against the influenza A virus H3N2 subtype even after a single dose. Furthermore, the adjuvanted vaccine offers significantly better seroprotection against mismatched strains of influenza A virus.

Title
Adjuvanted influenza vaccines for pediatric use
Application Number
13/167626
Publication Number
20120027813
Application Date
June 23, 2011
Publication Date
February 2, 2012
Inventor
Michele Pellegrini
Nicola Groth
Audino Podda
Assignee
Novartis Vaccines And Diagnostics
IPC
A61K 09/107
A61P 31/16
A61K 39/145
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