Research from Sinai Health System’s Lunenfeld Tanenbaum Research Institute investigated influenza in otherwise healthy healthcare workers. Results showed 5 to 10% of healthcare workers get the flu each year. 60% have symptoms similar to a cold – sore throat, runny nose, cough 20% have symptoms of influenza-like illness – fever, chills, cough, body aches, headache 20% have no symptoms at all but are infected and may spread the flu to others Did you know? In Toronto each year an average of 120 healthy adults are hospitalized due to influenza. 2 to 3 healthy adults die.