It is her body and her choice until it infringes on other people's bodies and choices. The people she's exposing to TB have no way to choose to avoid her. She'

It is her body and her choice until it infringes on other people's bodies and choices. The people she's exposing to TB have no way to choose to avoid her. She's forcing a dangerous illness on them without their knowledge or consent. She was given a choice to stay at home and she decided to go out and endanger others instead.