so sorry to hear about your friend. There seems to be many of us that are in the same boat unfortunately. I was in nursing and have now had to give up due to this injection.
I am in the UK and there is a Hep B vaccination support group over here that are gathering information etc but nobody is going to take the cases on at the moment. Im not sure in the USA maybe someone will read this and contact you to see if they can help you as your legal system is far in front of ours over here. I was in a wheelchair two years ago but i am now better but i have to walk with a stick and cant walk very far. Ive lost my balance amongst other things :o( so i know where you are coming from on this.
GOod luck to your friend and i hope she can get some treatment/physio that will help her recover. Please tell her to try and get some physio it does help in the long run i thought i wouldnt be able to get out of my wheelchair but i am now even though i have to use a stick to get around. There is hope and i hope she gets better soon.