What do you think vaccine court is for in the US? It is a great big zero liability wall for vaccine manufacturers. It is very difficult to bring a case and all of the records are essentially sealed, so litigators are essentially starting from scratch. And, the government can appeal it's own decisions after awards have been made.
In the US, you basically go through what is like a worker's comp system whenever you claim an injury due to a vaccine. The profits on vaccines are actually not very good and developing vaccines is incredibly expensive. The pharma industry all but abandoned developing vaccines after the costs of defending suits started eating up profits. Congress enacted a liability scheme that takes lawsuits out of courts and puts them through more of an administrative proceeding.