New York has more than 15,000 confirmed cases.
Gov. Andrew M. Cuomo disclosed new statistics on Sunday that indicated that New York State now has roughly 5 percent of the coronavirus cases worldwide.
The jump in the number of cases in New York stemmed from both the rapid growth of the outbreak and significantly increased testing in the state. Health officials emphasized that testing was revealing how quickly the coronavirus has spread.
There were 15,168 confirmed cases of the coronavirus in the state on Sunday, up 4,812 since Saturday, and 114 deaths, Mr. Cuomo said. About 13 percent, or 1,974 people in New York who tested positive for the virus, were hospitalized, Mr. Cuomo said.
He said that 18- to 49-year-olds made up more than half of all cases in the state, and that more than 9,000 of the total cases were in New York City.
The governor also said he wanted state hospitals to double their capacity. The Federal Emergency Management Agency would build four temporary hospitals with 1,000 total beds at the sprawling Jacob K. Javits Convention Center in Midtown Manhattan, he said. The Army Corps of Engineers will also provide up to 1,000 beds at Javits.
Mr. Cuomo urged the federal government to move quickly to test people for antibodies indicating that they have recovered from the virus, in part to help combat health care worker shortages. He added that New York had secured trial drugs from the federal government that would it begin testing on Tuesday.
“The president is optimistic about these drugs,” Mr. Cuomo said, noting that they included hydroxychloroquine, zithromax and chloroquine. “I’ve spoken with a number of health officials, and there is a good basis to believe that they could work.”
Mr. Cuomo also echoed a call from Mayor Bill de Blasio for the federal government to require the private sector to produce medical equipment. “If I had the power, I would do it in New York,” he said.
New Jersey has nearly 2,000 confirmed cases.
New Jersey officials announced 590 new coronavirus cases on Sunday, bringing its statewide total to 1,914, including 20 deaths. For the first time, all 21 counties in New Jersey have reported cases of the virus.
Two additional drive-through testing facilities will open in the state on Monday morning — one at the PNC Bank Arts Center in Holmdel and the second at Kean University in Union.
Gov. Philip D. Murphy issued an executive order on Saturday closing nonessential businesses and asking all residents to stay home. “There’s too many people still not paying attention to this,” Mr. Murphy said. “We’ve about had it.”
The state’s health commissioner, Judith Persichilli, said there was a shortage of blood, and she urged donors to make an appointment. “It’s one concrete way we can all roll up our sleeves and help,” she said.
There are new directions for park use in New York City.
Mayor Bill de Blasio on Sunday laid out new guidelines for New Yorkers wanting to visit the city’s parks. The biggest message: While exercising outside is fine, people should not gather in groups.
“You can go to the park but only for a limited amount of time,” the mayor said. “Families can stay together but don’t mix with other families.”
The mayor said that the police would “break up” anything that looks like the beginning of a gathering.
Mr. de Blasio also warned that while playgrounds would remain open, they were not being cleaned. So, parents must take “full responsibility” for keeping their child healthy and away from other children, he said.
If the rules were not followed, the mayor would consider closing the playgrounds, he said.
Police cases increase.
Despite the rising number of confirmed cases of the coronavirus, the New York police commissioner, Dermot F. Shea, said the department had not been hindered in carrying out its duties.
On Sunday, Mr. Shea said that 98 people in the New York Police Department, including 70 uniformed officers, had tested positive for the virus. Three people had been hospitalized, and one was discharged on Sunday, he said at a news conference on Sunday.
“We are not at the point where we’re close to going to 12-hour tours,” he said. “But what we are doing is planning for all eventualities and moving people from units that are less-important right now to be ready for any and all eventualities. So I think we are in a good place still and the planning is literally ongoing hour by hour.”
Police officials do not believe the members of the department are contracting the virus through police work; they think that officers and civilian workers are contracting it from sick family members, he said.
“As society contracts this disease, so do we,” he said.
But two police officials said that the confirmed cases were just a fraction of the problem. Overall, more than 2,000 police officers and civilian aides have called out sick with flulike symptoms, according to the officials, who requested anonymity to discuss confidential police medical records.
Mr. Shea would not give specific numbers but said the rate at which officers were calling out sick since Tuesday is approaching double the normal rate.
Reporting was contributed by Jonah Engel Bromwich, Ashley Southall, Annie Correal, Luis Ferré-Sadurní, Michael Gold, Joseph Goldstein, J. David Goodman, Jesse McKinley, Andy Newman, Azi Paybarah, Brian Rosenthal, Michael Rothfeld, Edgar Sandoval and Tracey Tully.