This is why I said "typically does not" instead of never. Some people's immune systems will go ape shit and get every possible symptom under the sun, and children's immune systems/reactions can be more stressed till they build some strength and have more exposures through life so their bodies learn how to handle them.

But if someone has a bad day that they're throwing up/have diarrhea (no stuffy nose, congestion, or other respiratory symptoms) then chances are they consumed something their body is trying to reject.