The article addresses the persistence of misinformation regarding the Covid-19 pandemic, specifically targeting the revisionist narratives surrounding vaccination. It clarifies that adverse event reports in pharmacovigilance databases do not imply causality and highlights that scientific consensus, including the Nobel Prize-winning mRNA technology, confirms vaccine safety. Furthermore, it cites recent data from the Portuguese Directorate-General of Health showing a decline in cardiovascular mortality, refuting claims that vaccines have caused an increase in such conditions.