n=1 anecdote. Outside of childhood, I've never been vaccinated (never took the COVID-19 vaccine either), and have never had the flu (at least not anything requi

n=1 anecdote. Outside of childhood, I've never been vaccinated (never took the COVID-19 vaccine either), and have never had the flu (at least not anything requiring rest) in the last two decades (in Canada) except when I got COVID-19 which lasted about 5 days in bed.