I don't know this from legal perspective, I only know that Quebec has a vaccine injury compensation program, which compensates the injured, but separately from the usual legal way - in Ontario, we would need to sue the government and the vaccine manufacturer.  In the States, the injured present their injuries, the vaccine manufacturers deny any responsibility and then they settle outside the court.  For a very small money for some dramatic injuries, which is sad.  Quebec is similar.  The rest of Canada, well, good luck!!