The University of Toledo

The 2012-2013 flu season started early and activity was intense compared to previous recent seasons for which data are available. While the 2012-2013 season has ended, sporadic flu activity can occur year-round and vaccination is still recommended for institutional outbreak control, for children needing their second dose and for some travelers. All seasonal influenza vaccine for the 2012-2013 season will expire by June 30, 2013. Vaccine for the 2013-2014 season will be available in the fall.