AUSTIN, Texas -- More than 40 University of Texas students who recently traveled to Mexico for a spring break trip have now tested positive for the coronavirus.

The university first announced nearly 30 cases earlier this week.

The group of students returned to Austin from Cabo San Lucas last month. The company that ran the trip comes to UT and other campuses every year to recruit attendees. It told students the trip was still on, despite warnings from health officials.

“For me it was really disappointing. This wasn’t early March where we were still unsure where the city was going to go. This was after federal warnings, state warnings, CDC guidelines had changed,” said Annika Olson, the assistant director of policy research at UT Austin’s Institute for Urban Policy Research and Analysis. “It’s risking the lives of many, many people.

Olson recently wrote an open letter urging young people to stay home and break the chain of contagion. Click the video link above to watch the full interview with Olson.