Background
In 2000, Ontario, Canada, initiated a universal influenza immunization program (UIIP) to provide free influenza vaccines for the entire population aged 6 mo or older. Influenza immunization increased more rapidly in younger age groups in Ontario compared to other Canadian provinces, which all maintained targeted immunization programs. We evaluated the effect of Ontario's UIIP on influenza-associated mortality, hospitalizations, emergency department (ED) use, and visits to...
Authors: Jeffrey c. Kwong, Thérèse a. Stukel, Jenny Lim, Allison j. Mcgeer, Ross e.g. Upshur, Helen Johansen, Christie Sambell, William w. Thompson, Deva Thiruchelvam, Fawziah Marra, Lawrence w. Svenson, Douglas g. Manuel