The cattle-killing New World screwworm that has been plaguing Mexican livestock has been found only an hour south of Texas’ southern border.
In the last four months, the parasite has moved 60 miles closer to the U.S. border, according to Chron.
The cattle-killing New World screwworm that has been plaguing Mexican livestock has been found only an hour south of Texas’ southern border.
In the last four months, the parasite has moved 60 miles closer to the U.S. border, according to Chron.