"An intriguing new study from Germany offers a glimpse into how SARS-CoV-2 affects the heart. Researchers studied 100 individuals, with a median age of just 49, who had recovered from Covid-19. Most were asymptomatic or had mild symptoms".,... "Nearly 80 percent had persistent abnormalities and 60 percent had evidence of myocarditis"

https://www.nytimes.com/2020/08/17/opinion/covid-19-heart-disease.html