Employees in the US are also protected by the Americans with Disabilities Act. It is dependent on the size of the company as to how much compliance is required. However, cancer patients and survivors are covered under it.

If a cancer survivor returns to work with a diminished ability to perform his or her job, the employer is required to accommodate the disability and find a suitable position for the employee. Also, the treatment process must be accommodated, as well. Large employers are not allowed to terminate employees as a result of absenteeism due to treatment, recovery and/or inability to perform at the level prior to illness.

I wish I didn't need to become aware of this legislation. But, as an unfortunate result of chemotherapy and the misdiagnosis of cancer in our family, we were slapped with the worst case scenario of this situation at the beginning of December.