There's a very high likelihood she would have died if their gave her the transplant without her being vaccinated. A transplant is already a huge stress on a body and if you're not vaccinated, you have a high chance to die from something as simple as the flu or a staph infection, due to all the immunosuppressant meds required.
Edit: Staph not staff 🤦♂️
Except is exactly fits the legal definition of sexual assault.