I would think “when it makes sense” would be before transmission of unknown origin, not after. What people are looking for is an explanation as to why other co

I would think “when it makes sense” would be before transmission of unknown origin, not after. What people are looking for is an explanation as to why other countries are testing more vigorously, and the CDC so far has not. Why not start random sampling among flu-like cases two weeks ago? Start in areas of high risk, move the circle out slowly.