working through coronavirus?

Hi. I'm new here. I'm a survivor of Non-Hodgkins Lymphoma, and my wife has survived two bouts of breast cancer, nine years apart. Her most recent cancer was Stage III-C, which engendered a dual mastectomy and removal of 22 lymph nodes (15 positive), followed by 10 cycles of AC-T chemotherapy and 32 sessions of radiology. Treatment ended in Feb. '19, and she's been blissfully cancer-free since. She takes Femara and will be for the foreseeable future.

She is also a 60-year-old asthmatic whose job as a field RN care manager requires her to attend patient appointments in doctor's offices and clinics daily. Long stints in crowded waiting rooms were alway unpleasant, but now they may also be unhealthy. We live just north of the Broward County line in South Florida. Broward has already produced four Covid-19 cases. She is understandably concerned about sitting in a crowded room among scores of coughing and sneezing patients, and is even more so since Florida declared a state of emergency. While she is not in active treatment at the moment, she has never felt fully recovered from her treatment. (Lymphadema in both arms and one leg doesn't help.)

I've been advising her to notify her employer that she doesn't feel safe working in those settings, given her medical history. She's afraid she'll lose her job. So while she's canceling all her own medical appointments out of infection fears, she attends other people's appointments and sits in the same waiting rooms. Something's wrong here.

I'm not looking for legal advice, but have any of you ever needed to request a change in your job description to better accommodate life after cancer? Any advice on how she can approach it?

Much appreciated!