CIUDAD JUÁREZ, Mexico—The gathering of thousands of Haitians at the Texas-Mexico border this past week reflects a stark change in migration patterns to the U.S., driven by Covid-19.
A far broader mix of nationalities is turning up at the border than in the past. For decades, most crossers were Mexican men and, in recent years, families from the troubled Central American countries of Guatemala, Honduras and El Salvador, known as the Northern Triangle.
