Live attenuated influenza vaccine, also known as the “nasal spray” flu vaccine, should not be used during the 2016-2017 flu season, the Centers for Disease Control and Prevention’s Advisory Committee on Immunization Practices recommended yesterday, based on data showing poor or lower effectiveness for the vaccine from 2013 through 2016. The maker of the vaccine, which accounts for about one-third of flu vaccines given to children, was expected to supply about 8% of the flu vaccine supply for the 2016-17 season, CDC said. The agency plans to work with manufacturers to ensure sufficient vaccine supply.