I am so sorry to hear of your situation.
My brother suffers from trauma and drug related psychosis and I am horrified that as her primary carer with a dependant in the home that you haven't been given some form of diagnosis. This is worrying to say the least.
I don't know about the terms of internment in the US or it's individual states. But I suggest you get reading, and fast.
Find out how long she can be hospitalized, how much influence you have over that as her primary carer.
Can you be made legally responsible for her if she is unable to be responsible for herself.
We have services over here who provide us with this information, the social services for one.

As tempting as it is to allow her delusion of the des messing with her, I would gently distract her from that notion as it could make getting her into treatment nigh on impossible if she starts to believe they made her sick.
Then you will get the blame for putting her in the hospital.

I know how tiring it is to have to think so many steps ahead when the steps are totally irrational, I just want to direct you to avoid making things more difficult without realising.

I do very much wish you all the best it is a long hard fought road to recovery. Please please get yourself support to help you cope.