All vaccines in the USA have exempted by liability protections since 1986.

They are also exempt from all double blind placebo testing by the FDA because they have carved out a special exemption. Vaccines are classified as “biologics” which is a relic from the cold war era.

If someone gets vaccine damaged they have to go through a special vaccine court, which to this day has paid out $4.5 billion. Getting an award requires the awardee signing an NDA as a requirement.