Seasonal influenza (A and B) and COVID-19 have both been linked to cardiovascular complications in otherwise healthy people without preexisting conditions; they pose even greater risks for complications and mortality in people with preexisting cardiovascular disease.1 Although vaccination can mitigate further cardiovascular risk from influenza,2 the same remains to be shown for COVID-19.
Read this article to be informed about the associations of cardiovascular disease risk and outcomes with seasonal influenza, as well as emerging information on associations with COVID-19. Also discussed is the importance of laboratory testing for recognizing potential cardiovascular effects of these illnesses.
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