As Mexico’s health-care system has strained under the coronavirus, small community hospitals in Southern California, some of the poorest in the state, have been flooded with Americans who have fallen ill and crossed the border.
They are retirees and dual citizens, Americans working in Mexico or visiting family there.
It is an example of how easily the virus moves between countries, even as governments - and particularly the Trump administration - have attempted to shut their borders.
And it’s a window into how many American lives span the U.S.-Mexico border, including families who have moved freely across the region since before that line was drawn and whose movement has continued during the pandemic. Find more information here at our Facebook page.