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Common viral infections like flu and shingles can raise your risk of heart attack and stroke, analysis finds

A meta-analysis of 155 studies shows viral infections like COVID-19 and flu can triple heart attack risk shortly after infection, with chronic infections raising long-term cardiovascular risks.

  • New research found viral infections like influenza, COVID-19, HIV, hepatitis C, and shingles increase the risk of heart attacks and strokes.
  • People with influenza were four times more likely to have a heart attack and five times more likely to have a stroke within a month of infection.
  • Those with COVID-19 had a three times higher risk of heart attack or stroke within 14 weeks, with elevated risk for up to a year.
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A new analysis is added to research on the relationship between viral infections and heart conditions.

·Buenos Aires, Argentina
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Medical Xpress broke the news in on Wednesday, October 29, 2025.
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