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Mount Sinai Hospital is a University of Toronto patient care, teaching, and research centre.
Mount Sinai Hospital is a University of Toronto patient care, teaching, and research centre.

Do some healthy adults consistently have systemic reactions to trivalent split virus influenza vaccines? A RCT of adverse events to flu vaccine

Study Purpose

To help us learn whether some people consistently get systemic (fever, chills, myalgia/muscle aches, arthralgia/joint pain, fatigue, headache, or insomnia) after getting their annual influenza vaccine

Who is being asked to participate?

  • People who have had the same systemic reaction (as listed above) to the most recent two (2) influenza vaccinations
  • You are not eligible to participate if you have.
    • already received your influenza vaccine this fall
    • had an allergic reaction (wheezing, hives, etc.) after receiving an influenza vaccine
    • had symptoms of Guillain Barré syndrome within 6 weeks of receiving an influenza vaccine

What is required?

  • Receive 2 injections 4 weeks apart - one of placebo and one of regular influenza vaccine
  • Complete a short questionnaire of possible risk factors
  • Complete two set of diaries of symptoms - for 7 days after each injection

Who do I contact about participating?

  • The Infectious Disease Epidemiology Research Unit at Mount Sinai Hospital
  • 416-586-4800 ext. 2764
  • idresearch@mtsinai.on.ca

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