[BostonCard]

Influenza affects between 9 million and 45 million Americans a year, so even in a heavy flu year, only about 1 in 7 of Americans will get the flu.  On an average year, your chance is probably one in 10, so going 30 years without the flu does imply good luck.  Your chances of doing so without a vaccine are about 4%; vaccinating every year with a 50% effective vaccine improves your chances to about 20%.

BC

[BostonCard]

Influenza affects between 9 million and 45 million Americans a year, so even in a heavy flu year, only about 1 in 7 of Americans will get the flu.  On an average year, your chance is probably one in 10, so going 30 years without the flu does imply good luck.  Your chances of doing so without a vaccine are about 4%; vaccinating every year with a 50% effective vaccine improves your chances to about 20%.

BC