Did you know… flu seasons can differ in severity, during most seasons, adults 65 years and older bear the greatest burden of severe flu disease, making it especially important for older adults to get an annual flu shot. In recent years, it’s estimated that between 71% and 85% of seasonal flu-related deaths have occurred in people 65 years and older. Between 54% and 70% of seasonal flu-related hospitalizations have occurred among people in that age group.