No way! As far as I know at the moment you haven't been exposed to an illness. You're body is a lot more stronger then what you may think. Even if there could of been something, you're going to be fine. A Tiny amount of exposure is nothing your white blood cells can handle. In fact, if you were infected somehow (Although very unlikely) Your white blood cells would of produced antibodies against it. Meaning, if you were to be confronted with the illness again (This time in a more severe way) your body would be able to fight it off more easily from all the antibodies it's produced. Not saying you were infected. That's extremely unlikely. Just trying to help the emetophobic side a little. Quit worrying a little bit of germs never hurt.