COVID-19 vaccines underwent preclinical testing in animals and clinical trials in tens of thousands of people, which established their safety and efficacy. Such testing is also a prerequisite for receiving emergency use authorization by the U.S. Food and Drug Administration. While deaths have occurred among vaccinated people, it is important to remember that more than 157 million people in the U.S. have been vaccinated, and that the rate of deaths among vaccinated people isn’t higher than that of unvaccinated people. This indicates that COVID-19 vaccines aren’t the cause of these deaths.