Loading...
Despite the recommendation that children aged ≥6 months receive influenza vaccine, immunization rates lag, in part due to the need for annual administration. Live attenuated influenza vaccine (LAIV) is a nasal spray rather than an injection, which may make vaccination more tolerable for many. Trivalent LAIV, available beginning in 2003, was initially shown to be at least as effective as inactivated influenza vaccine (IIV). Quadrivalent LAIV, with a second influenza B subtype, became available in 2013. For the last two influenza seasons, LAIV4 was not recommended due to several studies demonstrating poor efficacy during prior seasons. LAIV4 is again available for the current season, although the American Academy of Pediatrics recommends IIV …