This study came out about COVID vaccine safety, it has some reassuring conclusions for cardiovascular issues: https://www.cidrap.umn.edu/covid-19/risk-heart-attack-stroke-drops-after-covid-vaccination-data-show "This England-wide study offers patients reassurance of the cardiovascular safety of first, second and booster doses of COVID-19 vaccines," coauthor William Whiteley, MB BCh, PhD, of the University of Edinburgh, said in a press release from Health Data Research UK. "It demonstrates that the benefits of second and booster doses, with fewer common cardiovascular events include heart attacks and strokes after vaccination, outweigh the very rare cardiovascular complications."