I hate stomach flu

I wish I could keep the stomach flu away from my house. I use the wipes to wash the doors down. I mop and clean the bathrooms all of the time. But for some reason the flu is back. My little thing 2 has it bad. He is on the Autism Spectrum and well has a hard time with communication. So I am having a hard time telling when it is time to run to the toilet or get a bowl. As far as he is concerned he just has the itches and a bad case of hiccups. (he gets a little mixed up about the different illness he has had) He also has a hard time understanding why chocolate milk isn't a good idea right now. My poor washer has been going none stop since yesterday washing bedding and towels from this awful sickness. I hate stomach flu!!!