The coronavirus outbreak in New Jersey continues to rapidly escalate with 1,914 total known cases and 20 known deaths in the state as health officials announced Sunday another 590 positive tests on the first full day of the latest restrictions on travel and retail businesses.

“This is not a surprise," Gov. Phil Murphy said during a telephone briefing with reporters. "We knew, especially as we opened up testing, we could have bigger numbers. Some of this is community spread, no question.”

The numbers include four new deaths from coronavirus, Murphy said. The new deaths include a man in his 90s from Bergen County, a man in his 80s from Passaic County, a woman in her 90s from Middlesex County and a man in his 70s from Somerset County. The Bergen and Passaic deaths were both cases with underlying medical conditions, while the other two remain under investigation, said Judith Persichilli, commissioner of the state Department of Health.

There are now coronavirus cases in all 21 New Jersey counties. The state provided a partial county-by-county breakdown for the positive tests, though 211 remain under investigation:

Bergen County: 457

Essex County: 172

Monmouth County: 158

Middlesex County: 147

Hudson County: 126

Union County: 124

Morris County: 119

Ocean County: 102

Passaic County: 95

Somerset County: 51

Mercer County: 40

Burlington County: 26

Camden County: 22

Hunterdon County: 16

Sussex County: 12

Warren County: 9

Gloucester County: 8

Atlantic County: 5

Cape May County: 2

Cumberland County: 1

Salem County: 1

Murphy has stressed that the cases will likely climb into the “many thousands," particularly as testing expands in New Jersey, which has 9 million residents.

Officials have not released how many people have been hospitalized with or recovered from the virus.

The first state-run and FEMA supported testing site opened Friday at Bergen Community College to massive lines that stretched for miles. The site hit capacity on Sunday less than an hour after opening in Bergen County, the county with the most cases in the state.

A second state-run site is set to open on Monday at the PNC Arts Center in Holmdel.

Murphy took the dramatic step Saturday of signing executive orders shutting down non-essential retail businesses, canceling social gatherings, and instructing people to “quite simply stay at home."

The new order calls for nearly all New Jersey residents to stay in and refrain from travel — except for obtaining food and medicine, seeking medical attention, visiting family and those you have a “close personal relationship" with (like a caretaker or romantic partner), exercise, and reporting to work at a business that is still open.

The non-essential business shutdown is in effect Sunday. The list of essential businesses that are allowed to keep operating is, according to the state website:

Manufacturing, industrial, logistics, ports, heavy construction, shipping, food production, food delivery, and other commercial operations; and medical facilities where a sick or injured person is given care or treatment, such as doctor’s offices, hospitals, dentist offices, long-term care facilities and other medical offices.

NJ Advance Media staff writer Brent Johnson contributed to this report.

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Matt Arco may be reached at marco@njadvancemedia.com. Follow him on Twitter @MatthewArco or Facebook.

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