My first questions: Was the 3-year old in daycare? If so, with any immigrants? Does a parent work with immigrants?
“Was the 3-year old in daycare? If so, with any immigrants? Does a parent work with immigrants?”
And those are absolutely non-xenophobic questions to ask.
We have to rule out the possibility of this illness being brought in by immigrants. To not ponder or research that possibility is public health safety at its worst.