COVID 19 scare!

I’m highly upset. My sister has been sick, had a high fever, sore throat and head ache. She was tested for covid and is waiting for her results. She was called into work were she explained to them her symptoms and they didn’t care and told her to come in, she works at a senior living home. She dropped her children to my house and I didn’t know. Now I’m upset because she knows we’re in a pandemic and they are not taking precautions to protect the ones around them. I just don’t know what to do.