However, there is also data that suggests large gaps in reporting coverage as well. "... fewer than 1% of vaccine adverse events are reported." https://digital

However, there is also data that suggests large gaps in reporting coverage as well. "... fewer than 1% of vaccine adverse events are reported." https://digital.ahrq.gov/sites/default/files/docs/publication/r18hs017045-lazarus-final-report-2011.pdf https://digital.ahrq.gov/sites/default/files/docs/publicatio...