Nevada Gov. Steve Sisolak extended his state's coronavirus restrictions through at least Jan. 15 as COVID-19 cases and deaths surge in the Silver State.

Nearly every state in the U.S. reports more than 100 people hospitalized per million, according to the COVID Tracking Project. However, Nevada reports 592, which translates into one out of 1,700 people in the state, according to the project.

"We continue to see an increase of hospitalizations statewide with almost 1,700 Nevadans battling COVID as of Friday," Sisolak said at a press conference Sunday.

The governor also announced Sunday that he would sign an order to place a moratorium on most residential evictions in Nevada.

Since the start of the pandemic, Nevada has had more than 186,000 cases, with at least 2,529 deaths.

The first vaccinations in the state of Washington could be distributed as early as Tuesday, Gov. Jay Inslee said.

The initial shipment of the Pfizer vaccine arrives in the state on Monday.

"This is just fantastic news ... we are getting this vaccine," the governor said, adding he will get the vaccine himself when it is appropriate for his age group.

"Health care workers and long-term care residents will receive the vaccine first," he said.

The Korea Disease Control and Prevention Agency reported 1,030 newly diagnosed COVID-19 cases on Sunday, bringing the country's total to 46,645.

This is the first time since the beginning of the pandemic that South Korea broke the 1,000 mark in new cases and follows Saturday's record of 950 new cases.

Yonhap reports that President Moon Jae-in held an emergency meeting and called the current situation "the worst crisis" since the outbreak began and a "desperate time" when the government should make an all-out effort stem further infections.

-ABC News' Christine Theodorou

Italy's Civil Protection Agency reported 484 new deaths on Sunday, bringing the total number of fatalities in the country to 64,520, surpassing the United Kingdom which stands at 64,267, according to data from Johns Hopkins University.

There were 17,938 new COVID-19 cases reported in Italy, representing an 11.7% positivity rate and brings the total number of diagnosed cases to 1,843,712.

There have been a total of 372,965 deaths and 14,959,949 cases in the EU and the U.K., according to the European Centre for Disease Prevention and Control.

-ABC News' Christine Theodorou

U.S. Surgeon General Jerome Adams urged people to take the coronavirus pandemic seriously and follow public health guidelines as infections and hospitalizations soar across the country.

"I want the American people to know this virus is incredibly unforgiving, cases are going up, hospitalizations are going up, my colleagues are dog-tired and we need you to hang on just a little bit longer because we've got vaccines coming but we want as many people to be alive to get them as possible and a lot of that is going to depend on your behavior," Adams told ABC News chief anchor George Stephanopoulos in an interview Monday on "Good Morning America."

Although "more people than ever are wearing masks," Adams said he's "very" concerned by the number of people who still "don't understand how much spread is occurring by people who don't have symptoms."

About 20 million "full doses" of COVID-19 vaccines will be available by the end of the year, according to Adams, who urged every American to be immunized against the virus as soon as a vaccine is authorized and made available.

"It's a way that we can ultimately end this pandemic, but it doesn't matter if people won't get the vaccination," the surgeon general said. "We know that vaccine levels are only about 50% for adults for flu and they go down to about 40% for African-Americans."

Adams said he is working with historically black colleges and universities as well as faith communities to bolster vaccine confidence among all populations. The White House is also hosting a vaccine summit Tuesday, he said.

"One thing you can all do right now, it's national flu immunization week, get your flu shot because half a million people were hospitalized last year with the flu," Adams said. "We simply can't afford for that to happen this year with hospitals being overwhelmed."

The surgeon general said the current surge in infections across the country "is different than earlier surges," because it's not about a lack of masks or personal protective equipment, nor is it due to a lack of testing.

"It's really about health care capacity, and certain places are just being overwhelmed," he said. "So we know that we can actually help them with their health care capacity by immunizing their health care staff. We're going to leave it up to the states, but we're going to give them guidance."

Adams noted it's also important to vaccinate those who are most likely to die from COVID-19.

"We know that 40 to 50% of the deaths are occurring in people who are in longterm care facilities who are older," he said.