COVID-19 vaccination plan, there are concerns surrounding what will happen once we reach herd immunity and influenza season hits.“People are going to go back to their normal routines and so we will end up seeing influenza making its way back into the picture,” explains Toronto-based clinical pharmacologist Sabina Vohra-Miller.“We should be increasing our numbers that we’re getting, what we’re securing this year to at least have that ability to ramp up should the demand exist for even higher.” Flu cases hit record lows during pandemic, researcher says Due to the ongoing pandemic and spotlight on vaccines, it’s expected that at least 60 to 70 per cent of Ontarians will want to be vaccinated for influenza in 2021 compared to approximately 40.