Flu Vaccination Linked to Lower Heart, Stroke Risk After Infection - Summary - MDSpire
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Flu Vaccination Linked to Lower Heart, Stroke Risk After Infection

A Danish registry study suggests prior influenza vaccination is associated with lower short-term cardiovascular risk following breakthrough infection.

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A nationwide Danish study found that prior influenza vaccination is linked to a significant reduction in the excess risk of acute myocardial infarction and stroke following influenza infection. Among 1,221 patients aged 40 and older, those vaccinated had a lower incidence rate ratio (IRR) for these cardiovascular events post-infection. The highest risk occurred within the first three days after a positive influenza test. The results highlight the importance of influenza vaccination in potentially mitigating serious cardiovascular events during flu outbreaks.

Original Source(s)

Flu Vaccination Linked to Lower Heart, Stroke Risk After Infection

  • by Kerri Miller

  • April 7, 2026

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