My wife caught the stomach flu and began vomiting last Sunday (today is now Saturday, so she started showing symptoms six days ago). The last time she vomitted that I know of was Thursday morning, but tonight she didn't cover her face all the way and sneezed on my face accidentally. Am I at a risk for catching the stomach flu now? I washed my face off with a wet rag (after washing my hands) a few times because I'm paranoid.