Who_Am_I wrote:
And if she had influenza, the patients who she could have passed it on to wouldn't have been able to avoid her, as they would be sick and confined to their beds.
Nothing wrong with refusing in itself, but she shouldn't expect to be allowed around people who are more vulnerable to illness.
Again, you're missing the point.
She exercised her freedom by refusing the flu shot.
The hospital exercised their freedom by refusing to employ someone who refused the flu shot.
The patients were protected and their freedom from potential further harm was maintained, as someone who hadn't had the flu shot wouldn't be allowed to work there.