A study, carried out by Edinburgh University, has examined echograms of the heart from 1,200 patients collected from 69 countries, who had apparently 'recovered' from a Covid-19 infection (https://www.theguardian.com/science/2020/jul/13/heart-scans-of-covid-19-patients-show-range-of-abnormalities). None of the subjects had had known heart disease before they had been infected by the virus. A remarkable 55% of the sample showed evidence of damage to the heart, most commonly involving the ventricles (the major pumping receptacles in that organ). Although the heart damage was generally minor, around 14% showed substantial abnormalities. A small number of the sample even experienced coronaries ('heart attacks'). This is yet more evidence that Covid-19 creates lasting health problems, by damaging the circulatory systems of many of its victims.
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