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  • Title: Live attenuated influenza vaccine in children.
    Author: Ambrose CS, Walker RE, Connor EM.
    Journal: Semin Pediatr Infect Dis; 2006 Oct; 17(4):206-12. PubMed ID: 17055372.
    Abstract:
    Live attenuated influenza vaccine (LAIV) offers a novel approach to influenza vaccination and is approved for healthy individuals 5 to 49 years of age. In placebo-controlled studies in children, LAIV was 73 to 93 percent efficacious, and protection lasted more than 12 months. In head-to-head studies in children, LAIV demonstrated a 35 to 53 percent reduction in influenza attack rates compared with injectable influenza vaccine (TIV) for matched strains. Compared with TIV, LAIV has demonstrated broader serum antibody responses, particularly against mismatched influenza A. The most common adverse events are runny nose and nasal congestion. Increased rates of asthma events were observed in young children. Additional large-scale safety and efficacy studies in young children, including a formal risk-benefit assessment, are ongoing. The results of these analyses will guide potential future use in young children.
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