TB was never eradicated in the U.S. The cases dropped to rock bottom but even today are persons born in the USA say in the 1920's on who may have had TB as a kid or adult.
TB is never cured it is treated to where it became "Inactive". The person who had it was a carrier for life but as long as it was in an inactive state were no medical threat to anyone. But they must have yearly TB testing. Meaning the potential to become active is there if for example their immune system becomes weakened. TB was well under control in the USA due to testing and prompt treatment including involuntary if the person did not cooperate and most important making sure the patient took "ALL" of the medication until the contagious stage was ended.
The biggest risk foreign nationals bring TB wise in is where they have been diagnosed in the home country and partially treated meaning they did not take enough or all prescribed medication and thus the bug starts mutating a resistance to standard treatments and become a super bug.
Tagline correction/restore post. I don’t know what happened to it LOL.