The presence of antibodies — proteins in a patient’s immune system that fight off infections — tell researchers that those individuals had contracted the coronavirus in recent months. According to a a study from Texas Department of Health Services and UT Health, as many as a quarter of Texas residents have COVID-19 antibodies.

In an update to the situation at the Texas-Mexico border, the U.S. government plans to use a Texas convention center to hold up to 3,000 immigrant teenagers as sharply higher numbers of border crossings have severely strained the current capacity to hold youths.