The live attenuated influenza virus vaccine (LAIV), Flumist®, administered by intranasal spray, is approved for people aged 2-59 years. The National Advisory Committee on Immunization (NACI) recommended in its statement for the 2011-2012 season that, given its efficacy and immunogenicity, LAIV should be used preferentially for healthy children and adolescents aged 2 to 17 years…