I have posted on here before about this, but the reason that I feel strongly that vaccination should be as forcefully encouraged (ie not mandatory, but a requirement of continued employment for medical staff) is because of what happened when my son was born.
He spent some time in special care, and one of the SHOs on the unit was from abroad, and had falsified papers to suggest that his vaccinations were up to date. They weren't, and it turned out that he was carrying TB. All the babies who had been in the SCU were 'recalled', and had X rays and blood tests, and were given prophylactic medicine in case they had been infected.
My son was 2 weeks old. I vividly remember the experience, and would not wish that on anyone, particularly someone who has already been through the trauma of having a baby in SCU.
I know it's not an exact parallel, but all the same, I would set aside my usual 'live and let live' attitude in this case, and make vaccination a requirement of a medical role that brings the holder into contact with vulnerable people.