I work as a caregiver and at the end of a recent assignment, was told that the client has scabies, can I sue?

I work for an agency as a live in caregiver. I went on a 3-day assignment at the home of a client. On the last day, as I was preparing to leave, the client’s daughter approached me and told me that I had been exposed scabies. She told me that her mother contracted it in a nursing home. She felt that I had a right to know. However, she should have told me before I came into the home. She gave me a scabies shampoo kit. Because I work as a caregiver, I am limited to where I can work. I really should not go to other client’s house because of the potential to spread the scabies. I do not know how much the agency knew. However, I suppose that this is essential information that they should have been aware of. The agency acted strange in that the agency called me the day after I ended the assignment. On a voice message, they wanted to call the other caregiver working with the client with scabies. They stated that she wanted to ask me some questions. I called the caregiver and she was asking if I wanted to return to the home. This was totally inappropriate. The agency should have asked me this question and not the caregiver. I am very angry now and do not know how to handle this. I wanted to go home for Christmas, but now I feel contaminated. They should have told me the situation and allowed me to make an informed decision.