The article is summarizing a JAMA study done in Germany. JAMA is well respected. Their conclusion was less sensational - essentially they say our findings show 60% of recovered patients had heart inflammation regardless of pre-existing conditions so there should be more research into cardiac effects of COVID-19.
There was no indication of actual danger, or any frame of reference to other infectious viruses (flu and other viruses also cause temporary heart inflammation).
Key Points:
Question What are the cardiovascular effects in unselected patients with recent coronavirus disease 2019 (COVID-19)?
Findings: In this cohort study including 100 patients recently recovered from COVID-19 identified from a COVID-19 test center, cardiac magnetic resonance imaging revealed cardiac involvement in 78 patients (78%) and ongoing myocardial inflammation in 60 patients (60%), which was independent of preexisting conditions, severity and overall course of the acute illness, and the time from the original diagnosis.
