Gov. Jared Polis announced Wednesday he is asking the Colorado Department of Public Health and Environment to move Colorado counties that are currently in Level Red on the COVID-19 dial down to Orange on Monday.

The move, which eases restrictions, would include the Denver metro area.

Polis said on Twitter and Facebook that this is because of a sustained decline in cases of the novel coronavirus.

“In reviewing the data today, Colorado has been in a sustained decline for 13 days, and only 73% of ICU beds statewide are in use,” the post said. “This is a direct result of Coloradans stepping up and taking the steps to protect themselves and others.”

Under level Orange guidelines, restaurants can operate at 25% capacity with a maximum capacity of 50. Gym capacity also increases to 25% or 25 people indoors per room.

Earlier on Wednesday, state officials announced that the United States’ first confirmed case of a new, highly transmissible COVID-19 variant sweeping through the United Kingdom — as well as a second potential case — are members of the Colorado National Guard who were deployed to a nursing home in Simla.

Both were sent Dec. 23 to aid the Good Samaritan Society nursing home, about an hour outside of Colorado Springs, where 20 out of 24 workers and all 26 residents had contracted the virus, said Dr. Rachel Herlihy, an epidemiologist with the state health department, at a news conference Wednesday.

In all, six National Guard personnel were deployed to the facility to assist with staffing, and so far no additional troops have tested positive. It’s possible that the positive Guardsman contracted the variant in the community, not at the nursing home. There is no evidence that the variant is circulating there, but additional testing is underway, Herlihy said.

The potential case has not yet been confirmed because genome sequencing is still underway, said Dr. Emily Travanty, scientific director of the laboratory services division at the state health department. The work should be completed within the next week, she added.

The country’s — and the state’s — first case is a man in his 20s, with no travel history and no close contacts yet identified, state officials said Tuesday. He has mild symptoms and is isolating at home in Arapahoe County, state officials said Wednesday, adding that the other individual suspected of having the variant is isolating at a hotel in Lincoln County.

The variant identified in the new case, known as B.1.1.7, is the same one discovered in Europe this month. It triggered alarm when announced by Britain’s prime minister and caused dozens of countries to ban flights from the United Kingdom, as well as strict lockdown measures in southern England. It appears to be 70% more transmissible than the dominant strain of COVID-19, Colorado officials said last week.

The variant “very likely exists in many states,” Polis said, particularly in the mid-Atlantic area, where there are high rates of travel to and from the U.K.

California on Wednesday announced the nation’s second confirmed case of the new variant, offering a strong indication that the infection is spreading more widely in the United States. He did not provide any details about the person who was infected.

In other Colorado COVID-19 news:

• Colorado is asking the U.S. Centers for Medicare & Medicaid Services to allow the state to temporarily suspend visitations to nursing homes as workers and residents continue to be vaccinated, Polis said.

• Another 12 COVID-19 samples that may potentially contain the variant strain await sequencing, Travanty said, adding that the state lab would continue to look at older samples, as well as all samples looking forward, for indicators of the mutation.

• There were 2,451 new cases of the virus reported to the state on Wednesday, said Polis, citing preliminary data. Testing has been down over the last few days, he added.

• Just over 1,000 were hospitalized with COVID-19 on Wednesday, he said. The number of deaths directly caused by COVID was 3,901, he added, while the number of deaths among patients who had COVID at their time of death, including those who died of other causes, was 4,750.

• More than 84,000 vaccinations had been administered in the state as of Wednesday, Polis said, placing Colorado in the top four or five states in the nation when it comes to vaccinate administration per capita. “We want to build that lead,” he said. “We want to be No. 1.”

The Associated Press contributed to this report.