I’m glad someone is pointing this out. Let in a bunch of Third World people without screening and you end up with Third World diseases and medical issues. You end up with epidemics. All you have to do is look around the world to Africa or Asia or other South American countries to see what happens when your population has not been brought up under US health standards.
There are always a few people who are unvaccinated for any variety of reasons. They generally aren’t a problem because most are vaccinated. Now we’re getting 2rd worlders who have no trail and we know nothing about.
I’ve got an aunt who was exposed to TB a few years back while working at the hospital. She assumed it was the Amish in her area but it turned out that the strain she was exposed to is most common in central and south America.