We don’t willingly import diseases.
Not so much. I give you Ebola all the way down to various forms of Whooping Cough and other niceties from our southern neighbor's, that we do indeed willingly import disease.
You’re correct. I worded it poorly. We USED TO require good health of all immigrants. Many were turned away at
Ellis island and sent back to their country of origin because they couldn’t pass the health requirements to enter the U.S..
This administration under Obama has imported everything under the sun, particularly tuberculosis.