04/12/2026
Flu Vaccine May Reduce Risk Of Flu-Related Heart Attack Or Stroke, Study Suggests
HealthDay (4/8, Thompson) reports a study suggests “the influenza vaccine can significantly reduce the risk of a flu-related heart attack or stroke, even among folks who become infected after vaccination.” The researchers “tracked more than 1,200 adults 40 or older in Denmark who’d landed in the hospital with a heart attack or stroke within a year of coming down with the flu.” They observed that “two-thirds (65%) of the patients had suffered a stroke, and the rest (35%), a heart attack. About half of the cases occurred after the patient had been vaccinated against the flu.” Results indicated “that within the first week of catching the flu, people’s risk was three times higher for suffering a stroke and five times higher for a heart attack. But this risk was cut by half for people who caught the flu but had been vaccinated against it for that season, researchers found.” The study was published in Eurosurveillance.
BACKGROUND Influenza infection is a recognised trigger of acute myocardial infarction (AMI) and stroke, but whether influenza vaccination modifies this risk remains unclear. AIM We aimed to quantify the short-term cardiovascular risk after laboratory-confirmed influenza infection and assess whether....