Covid-19: how does it cause heart damage?

Cardiovascular problems aren't just a risk factor for Covid-19, but can also be a complication of having the disease. A growing number of studies are showing that many of those who have been hospitalised for Covid-19, as well as people who managed the initial infection at home, are being left with heart injuries including inflammation, blood clots and abnormal heart rhythms. Nicola Davis speaks to Dr Betty Raman to find out how the virus damages organs outside the lungs, and what's being done to help