正文讨论里的第二段:
Safety monitoring of COVID-19 vaccines has been the most comprehensive in US history and has used established systems, including the Vaccine Safety Datalink (VSD),
VAERS, and a new system, v-safe, developed specifically for monitoring COVID-19 vaccine safety. During the study period, all COVID-19 vaccines were administered under EUAs, which require vaccine providers to report all serious adverse events (including deaths) that occur after vaccination to VAERS, regardless of whether they were plausibly associated with vaccination. Heightened public awareness of the COVID-19 vaccination programme, outreach and education to health-care providers and hospitals about COVID-19 EUA reporting requirements for adverse events, and adherence to EUA reporting requirements by providers and health systems, probably all contributed to the high volume of VAERS reports received.