Flu Activity & Surveillance
Note: For the 2016-2017 season, CDC recommends use of the flu shot (inactivated influenza vaccine or IIV) and the recombinant influenza vaccine (RIV). The nasal spray flu vaccine (live attenuated influenza vaccine or LAIV) should not be used during 2016-2017. The 2016-2017 influenza vaccination recommendations are now available.
A weekly influenza surveillance report prepared by the Influenza Division. All data are preliminary and may change as more reports are received.
- Page last reviewed: October 21, 2015
- Page last updated: March 24, 2016
- Content source:
- Centers for Disease Control and Prevention, National Center for Immunization and Respiratory Diseases (NCIRD)
- Page maintained by: Office of the Associate Director for Communication, Digital Media Branch, Division of Public Affairs