

No one’s saying she’s dead. Rice is just a high risk food to leave at room temperature. It’s possible she could continue doing this her whole life and never get sick, but it doesn’t change the general risk level.
I won’t tell you what to do, but here’s an article on it by researchers in Malaysia: https://www.sciencedirect.com/science/article/abs/pii/S0882401023004515
Sounds like you’ll all be having a time in a couple months. I wish an early happy holidays to you.