(CNN) -- The United States is advising residents of New York, New Jersey and Connecticut not to travel domestically after the number of reported coronavirus deaths doubled to over 2,000 nationwide within two days.
It took about a month from the first report of a coronavirus death on February 29 to the number reaching 1,000 on Thursday. By Saturday, the number of reported deaths had doubled to 2,000.
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The Centers for Disease Control and Prevention issued the travel advisory Saturday, urging residents of the three states to "refrain from nonessential domestic travel for 14 days effective immediately." The states would have "full discretion" on implementing the advisory, which exempts employees in critical fields.
Tracking coronavirus cases in the US
With more than 121,900 cases and 2,054 deaths nationwide, the three states make up more than half of the cases and nearly half of the deaths.
President Donald Trump had contemplated issuing an enforceable quarantine for parts of those states, then later said it will not be necessary. New York Gov. Andrew Cuomo told CNN on Saturday that Trump's suggestion of a two-week enforceable quarantine within the three states was not legal or plausible.
"The fact of the matter is, people really aren't traveling a whole lot," New Jersey Gov. Phil Murphy said when asked about the advisory on ABC's "This Week" Sunday. "A travel warning, we're fine with."
Murphy added that his state is “all in on flattening the curve.”
Up to 200K deaths foreseen in US as Spain, Italy demand help
More than two-thirds of the US population face restrictions
As of Saturday, at least 215 million Americans were under various stay at home or shelter in place orders, according to a CNN count based on census data. By Monday, that number will reach 225 million, meaning more than two thirds of the country's population will be facing those restrictions.
And the growing numbers have also revealed new demographics facing severe illness.
Cases of young adults developing severe illnesses have been more widely reported, but children were thought to be avoiding the harshest effects.
On Saturday, state officials reported the death of an infant under age 1 who tested positive for coronavirus and is believed to be the youngest person to die of the virus in the United States.
An investigation is underway to determine the cause of death, the Illinois Department of Public Health said.
A push for medical supplies grows
Medical staff nationwide have struggled to maintain an adequate supply of personal protective equipment, hospital beds and ventilators.
Trump approved four more emergency hospitals in New York. The facilities in Brooklyn, Queens, Staten Island and the Bronx will provide 4,000 beds.
Another 1,000 beds will be available this week in a temporary overflow hospital at Javits Convention Center in Manhattan, and an additional 1,000 beds will be on the USNS Comfort set to arrive in New York on Monday, Cuomo said.
But officials believe the state will need 140,000 beds when it reaches the apex of the pandemic in 14 to 21 days, Cuomo said.
The administration will also facilitate the production or acquisition of "100,000 additional units" of ventilators over a 100-day period, Trump said.
"Maybe we won't even need the full activation," said Trump of the Defense Production Act, which he invoked Friday. "We will find out, but we need the ventilators."
Large corporations are also stepping up to feed the supply gap. New Balance announced Friday on Twitter that its US factories will work on developing, manufacturing and delivering facial masks to hospitals. The same day, Delta Air Lines announced it will fly medical professionals for free to areas significantly impacted by coronavirus.
Police and nurses are falling ill
Those charged with treating patients and maintaining order are feeling the affects of the pandemic as well.
The shortage of personal protective equipment drove a group of New York nurses to protest outside the Jacobi Medical Center on Saturday, demanding the supplies they need to do their jobs safely.
"If we get sick, our patients will get sick. This is for our entire community," said Kelley Cabrera, a registered nurse. "If you look at what we are wearing in comparison to others countries, it's unacceptable."
The medical center said that although the staff has adequate supplies, there is a nationwide shortage and conservation measures are in place.
Meanwhile, 12 nurses at the University of Illinois Hospital have tested positive for coronavirus, the state's nursing association said.
ln New York City, 730 uniformed NYPD officers and 96 civilian employees are infected with the coronavirus, according to a law enforcement official. Twenty-nine of them are hospitalized and one is in critical condition, the official said.
At least 4,662 officers -- about 12% of the department -- are out sick, either with the coronavirus or other ailments, the official said.
In a rare step, the NYPD is advising officers and employees with underlying conditions to seek permission from their commanding officers to work from home, the official said. Pregnant staff are being advised to do the same.
New York City's police department lost its first detective to Covid-19, marking the third death of an NYPD employee to the disease.
Gov. Cuomo paid homage to the detective, Cedric Dixon, in a news conference Sunday, along with Kious Kelly, an assistant nurse manager at New York City's Mt. Sinai Hospital who also lost his life.
Cuomo described what they and all first responders do as an "act of love and courage," driven by their "passion and belief in helping others."
“I don’t even have the words to express my admiration for them,” the governor said.