Efficacy and Safety of 1 and 2 Doses of Live Attenuated Influenza Vaccine in Vaccine-Naive Children

Abstract
Background: We investigated the efficacy and safety of 1 versus 2 doses of live attenuated influenza vaccine (LAIV) in influenza vaccine-naive children aged 6 to = 2 years of age.Universidade Federal de São Paulo, São Paulo, BrazilHosp Infantil Cordoba, Ctr Desarrollo Proyectos Avanzados, Cordoba, ArgentinaChris Hani Baragwanath Hosp, Paediat Infect Dis Res Unit, Johannesburg, South AfricaWyeth Vaccines Res, Pearl River, NY 10965 USAUniversidade Federal de São Paulo, São Paulo, BrazilWeb of Scienc

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