Help, my mom has the coronavirus

She's in the hospital very sick at the moment. Unfortunately my family of four has fallen on hard times and has been living with her lately. I'm worried primarily about myself and my kids (2 years old, also autistic, and a 9 month old) contracting it now. I have several health issues and will likely die if I get the virus. I was hoping someone knew what I could do? Is there something I can take or do to help prevent it? And can I help prevent my kids from getting it too??