Michaela K Nichols, Melissa K Andrew, Todd F Hatchette, Ardith Ambrose, Guy Boivin, William Bowie, Ayman Chit, Gael Dos Santos, May ElSherif, Karen Green, Francois Haguinet, Scott A Halperin, Barbara Ibarguchi, Jennie Johnstone, Kevin Katz, Phillipe Lagacé-Wiens, Joanne M Langley, Jason LeBlanc, Mark Loeb, Donna MacKinnon-Cameron, Anne McCarthy, Janet E McElhaney, Allison McGeer, Andre Poirier, Jeff Powis, David Richardson, Anne Schuind, Makeda Semret, Vivek Shinde, Stephanie Smith, Daniel Smyth, Grant Stiver, Geoffrey Taylor, Sylvie Trottier, Louis Valiquette, Duncan Webster, Lingyun Ye, Shelly A McNeil
BACKGROUND: Ongoing assessment of influenza vaccine effectiveness (VE) is critical to inform public health policy. This study aimed to determine the VE of trivalent influenza vaccine (TIV) for preventing influenza-related hospitalizations and other serious outcomes over three consecutive influenza seasons. METHODS: The Serious Outcomes Surveillance (SOS) Network of the Canadian Immunization Research Network (CIRN) conducted active surveillance for influenza in adults ≥16 years (y) of age during the 2011/2012, 2012/2013 and 2013/2014 seasons in hospitals across Canada...
March 13, 2018: Vaccine