Analysis of trial data shows increased risk of cardiac deaths

Sources:

• 
  April 9, 2022. Will Jones. “Covid Vaccines Increase Risk of Heart-Related Deaths by Up to 50%, Lancet Analysis of Trial Data Finds.” The Daily Sceptic.
  https://dailysceptic.org/2022/04/09/covid-vaccines-increase-risk-of-heart-related-deaths-by-up-to-50-lancet-analysis-of-trial-data-finds/.
  Blog.
• 
  April 5, 2022. Christine Stabell Benn, Frederik Schaltz-Buchholzer, Sebastian Nielsen, Mihai G. Netea, and Peter Aaby. “Randomised Clinical Trials of COVID-19 Vaccines: Do Adenovirus-Vector Vaccines Have Beneficial Non-Specific Effects?” SSRN Scholarly Paper 4072489. Rochester, NY: Social Science Research Network.
  https://doi.org/10.2139/ssrn.4072489.
  Research Journal.

See also, on this site:

• FDA issues black box warning on Moderna and Pfizer-BioNTech COVID-19 vaccines regarding heart risks
• Health minister in Queensland, Australia reports 40% jump in emergency responses