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Title: Trivalent and quadrivalent MF59(®)-adjuvanted influenza vaccine in young children: a dose- and schedule-finding study. Author: Della Cioppa G, Vesikari T, Sokal E, Lindert K, Nicolay U. Journal: Vaccine; 2011 Nov 03; 29(47):8696-704. PubMed ID: 21906647. Abstract: Young children are at increased risk for influenza infections and related complications. The protection offered to children by conventional trivalent inactivated influenza vaccines (TIV) is suboptimal, due to poor immunogenicity and a higher exposure to infection and complications in this age group, particularly from influenza B strains. In this dose-ranging, factorial design trial, we report the safety and immunogenicity of different combinations of adjuvanted (ATIV) and non-adjuvanted trivalent (TIV) and quadrivalent (QIV) influenza vaccines in 480 healthy children 6 to <36 months of age. The results show that the second B strain added to TIV was immunogenic and did not affect immunogenicity of the other strains. The addition of the MF59(®) adjuvant promoted robust immune responses with notable elevations in antibodies observed even after one dose. A dose-response relationship was observed between the antibody response and MF59 adjuvant. No patterns in safety and tolerability emerged with different adjuvant and antigen doses nor with the addition of a second B strain. MF59-adjuvanted QIV offers potential advantages to young children.[Abstract] [Full Text] [Related] [New Search]