The U.S. is having its worst year for measles in more than three decades as childhood vaccination rates decline.

The parasite — the larvae of the new world screwworm fly — can devastate cattle herds and is rife in parts of Central America ...

The Trump administration said it plans to vet all 55 million foreigners in the United States on visas, looking for overstays, ...

The US State Department is pausing the issuing of work visas for foreigners looking to become commercial truck drivers in the ...

The US State Department has revoked thousands of student visas — most of them for overstays and various law violations ...

The U.S. confirmed its first human diagnosis of the flesh-eating bacteria screwworm since 1982 after its known eradication ...

Trump's deployment of 1,700 National Guard personnel has already happened, but it's not related to a crime crackdown.