The sources you mentioned, such as VAERS (Vaccine Adverse Event Reporting System), European databases, CDC, and government statistics, are indeed some of the most reliable sources for tracking adverse events related to vaccines and conducting b2b data enrichment. These organizations collect and analyze data to ensure vaccine safety. However, it's crucial to interpret this data correctly and in context. Comparing the number of reported adverse events to the number of COVID-19 deaths is not a valid comparison. COVID-19 is a highly contagious and deadly disease. Vaccines have been shown to be highly effective at reducing severe illness and death from COVID-19. The benefits of vaccination in preventing illness and death far outweigh the risks of rare adverse events.