Neither the vaccine maker not the administrator (doctor/clinic/nurse) can be hed liable for any vaccine given in the US, period, whether it's flu, covid, polio, etc. This has been the case for decades. Your only recourse is through a government fund, and good luck to you with that. You'll spend years fighting to get a pittance. It shocks me how few people know this. It used to be called the national vaccine act, name has changed but you can still search under the old one.