Flu vaccine may tame heart inflammation, small study hints

This study looked at whether the flu vaccine can reduce inflammation in people with stable coronary artery disease. Inflammation plays a key role in heart disease progression. The trial involved 47 adults aged 60 and older with stable heart disease, who received the flu vaccine either right away or after a delay. Researchers measured changes in blood markers of inflammation, like C-reactive protein, to see if the vaccine had a direct calming effect on the immune system.