In its latest report of side effects to June 16, it said there have been 88 cases of heart conditions among 27.7 million Pfizer shots - a risk of three in a million. There have been three cases after 73,000 Moderna shots, equivalent to around 41 in a million. There have also been 119 among 44.1 million Oxford/Astrazeneca vaccine shots, or 2.7 in a million.