Write a precis of the passage given below in about one-third of its length. Please do not give any title to it.The precis should be written in your own language. 

 Manuel Bernal could have sought a different assignment once the coronavirus pandemic hit Advocate Christ Medical Center, one of the busiest trauma hospitals serving Chicago’s South Side. His supervisor said she would not ask him to put his life on the line as an emergency medicine physician still in training.

Bernal already felt his future was in jeopardy as one of more than 640,000 undocumented immigrants known as “dreamers,” who could lose their work permits if the Supreme Court allows the Trump administration to end an Obama-era program that protects them from deportation.

But the 29-year-old resident pushed aside worries about his own vulnerability and the looming ruling and dove into emergency room work. One day recently, he tested seven people, all positive for the novel coronavirus. On the next, he intubated two patients with covid-19, the disease caused by the virus, as their oxygen levels plunged — an especially dangerous procedure for doctors because of the potential exposure to the aerosolized virus.

Bernal is among an estimated 29,000 health-care workers enrolled in the Deferred Action for Childhood Arrivals program who are working on the front lines of the battle against the coronavirus, even as their own futures in this country hang by a thread.

They include a registered nurse who drove her RV 700 miles from Utah to work in a Sacramento-area hospital, a Houston paramedic who slept for 20 minutes on a recent 24-hour shift, and a nurse’s assistant on Staten Island, who carefully wraps up bodies others are afraid to touch.

“We’re basically risking our lives,” Bernal said. “But I also understand it’s part of the job I signed up for. I think it’s worth it when I see some patients come in who are extremely ill and I’m able to intervene.”