People with heart failure who received an annual flu shot had lower rates of pneumonia and hospitalization on a year-round basis and a reduction in major cardiovascular events during peak flu season, in a study presented at the American College of Cardiology’s 71st Annual Scientific Session. However, the trial did not meet its primary endpoint as patients who received the flu vaccine showed no significant reduction in rates of major cardiovascular events on a year-round basis during the study’s three-year follow-up period.
