I'm so sorry you're in this situation!

A few years ago 3/4 of my family had a bad bout of it. (I didn't know about emetophobia at the time, although I did suffer from it. I didn't know about handw ashing and the ways to prevent catching it.) My mother never caught it, even though she cleaned up after two children and her husband all day and night. She never wore gloves or anything. It definite IS possible for you to not catch anything!