Coronavirus Live Updates: Recession Fears Loom as U.S. Lawmakers Negotiate Rescue Package

The governors of New York, New Jersey and Connecticut on Friday told their residents to stay indoors as much as possible, issuing far-reaching demands that all nonessential workers must remain at home.

Both Govs. Andrew M. Cuomo of New York and Ned Lamont of Connecticut issued similar orders on Friday, while Philip D. Murphy of New Jersey announced a statewide shutdown of all nonessential businesses, effective Saturday at 9 p.m.

The sweeping edicts were announced as the number of confirmed coronavirus cases jumped again on Friday, with New York State reporting nearly 8,000 cases. Most of them are in New York City, which now accounts for about one-third all cases in the United States.

Late Friday, officials reported 5,683 confirmed coronavirus cases in New York City and 43 deaths. Earlier in the day, officials had put the number of cases at 5,151 and the number of deaths at 29.

That startlingly quick ascent is thrusting the city’s medical system toward a crisis point, officials said. Doctors at Lincoln Hospital and Health Center in the Bronx said they have only a few remaining ventilators for patients. In Brooklyn, doctors at Kings County Hospital Center said they are reusing masks for up to a week, cleaning them as best they can with hand sanitizer between shifts.

On Saturday, Gov. Andrew M. Cuomo said that the state was sending one million N95 masks to New York City and 500,000 to Long Island. The N95 mask filters out very small particles, protecting wearers from the virus.

Mr. Cuomo said that the state had also identified about 6,000 ventilators for purchase, of the about 30,000 needed. They will be coming in over the next couple weeks, he said. In response to a question, he added, “They were located in places all across the globe.”