Did the DTaP Vaccine Only Have a Four Day Clinical Trial?
Vaccine Safety Datalink
From years and years of pre-licensure vaccine safety testing to continual post-licensure vaccine safety monitoring, we can be confident that vaccines are safe.
While mild side effects are likely under-reported to VAERS, a large percentage of serious adverse events do get reported.
The Vaccine Safety Datalink (VSD) is another part of our system that helps make sure our vaccines are safe.