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PHO Rounds: Influenza Vaccine Effectiveness Study
Tuesday, May 17, 2011 12:00 pm to 01:00 pm
Venue: 480 University Ave. Suite 300, Toronto, ON M5G 1V2



The Influenza Vaccine Effectiveness (VE) Study started as a pilot program in BC in 2004 to monitor annual influenza circulation and VE against lab confirmed influenza. Ontario joined this initiative in 2008 and the study is now conducted in 4 provinces. The study utilizes a province-wide network of sentinels to collect samples from patients presenting with influenza-like illness, and tests them for influenza and other viral respiratory pathogens. In Ontario, sentinels submit specimens and an accompanying laboratory requisition with a short questionnaire to the Toronto Public Health Laboratory. Combined VE analysis is conducted annually at the BCCDC using anonymized aggregated data from participating provinces.

During the presentation, presenters will provide information about the influenza virus, discuss the VE study methodology and share results of circulating respiratory viruses in Ontario for the current season.


  • Dr. Jonathan Gubbay- Medical Microbiologist, PHO
  • Romy Olsha-Influenza VE Study, Coordinator, PHO
  • Anne Winter-  Senior Epidemiologist, Surveillance and Epidemiology, PHO

Public Health Ontario is committed to complying with the Accessibility for Ontarians with Disabilities Act (AODA). If you require accommodations to participate in this event, please contact 647-260-7100 or


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