A small island nation in the southwestern Pacific Ocean has remained untouched by the coronavirus pandemic -- until now.

Vanuatu confirmed its first case of COVID-19 on Tuesday.

Vanuatu's Ministry of Health said the case is a 23-year-old man who had returned to the archipelago nation on Nov. 4, after traveling to the United States. He tested positive during a routine screening on the fifth day of quarantine.

The man, who hasn't shown any symptoms, will remain in isolation until health clearance is provided, according to the health ministry.

"Physical distancing and personal protection measures were applied and maintained during the flight, throughout the arrival process, during transport to and during registration at the quarantine facility," the ministry said in a press release. "The person had been identified during pre-travel registration as traveling from a higher-risk location, therefore was seated separately at the back of the plane and was screened and transported separately from other arriving passengers. The case did not share a room with anyone else at the quarantine facility and is reported to have adhered to all appropriate measures throughout the travel and quarantine process."

Russia registered 432 deaths from COVID-19 in the last 24 hours, setting a new single-day record.

An additional 19,851 new cases of COVID-19 were also confirmed nationwide over the past day, according to Russia's coronavirus response headquarters. It's the first time in six days that daily infections didn't exceed 20,000.

The country's cumulative total now stands at 1,836,960 cases with 31,593 deaths, according to the coronavirus response headquarters.

Moscow remains the epicenter of the country's outbreak and recent surge. More than 22% of the newly confirmed cases -- 4,477 -- and nearly 17% of the new deaths -- 73 -- were reported in the capital, according to Russia's coronavirus response headquarters.

Despite the growing number of infections and deaths, Russian authorities have repeatedly said they have no plans to impose another nationwide lockdown.

The Eastern European country of 145 million people has the fifth-highest tally of COVID-19 cases in the world, behind only the United States, India, Brazil and France, according to a real-time count kept by Johns Hopkins University.

ABC News' Alina Lobzina contributed to this report.

The El Paso County Jail in Colorado has had 976 inmates and 85 staff members who have tested positive for COVID-19 since the pandemic began.

The outbreak at the jail was first reported on Oct. 26, when eight employees across varying assignments were found to be infected. The following day, the El Paso County Sheriff's Office announced that two more deputies who work there and eight inmates had tested positive.

"An aggressive, prioritized COVID testing schedule was implemented for staff and inmates," the sheriff's office said in a statement on its website, where it provides updates on the outbreaks as test results become available.

There were 911 inmates and 73 staff members who tested positive on Monday alone. It's unclear how many total inmates were in custody that day.

"The threat of further infection will continue to increase over the next several weeks," the sheriff's office said. "At this point in time, there have been no inmates who have had to be hospitalized. They are all being treated in the facility by our medical provider, WellPath."

Visitation at the jail remains closed.

There were 136,325 new cases of COVID-19 identified in the United States on Tuesday, marking a new single-day record, according to a real-time count kept by Johns Hopkins University.

It's the seventh straight day that the country has reported over 100,000 new infections. Tuesday's tally tops the nation's previous all-time high of 128,412 new cases

A total of 10,257,825 people in the United States have been diagnosed with COVID-19 since the pandemic began, and at least 239,683 of them have died, according to Johns Hopkins. The cases include people from all 50 U.S. states, Washington, D.C. and other U.S. territories as well as repatriated citizens.

Much of the country was under lockdown by the end of March as the first wave of pandemic hit. By May 20, all U.S. states had begun lifting stay-at-home orders and other restrictions put in place to curb the spread of the novel coronavirus. The day-to-day increase in the country's cases then hovered around 20,000 for a couple of weeks before shooting back up and crossing 100,000 for the first time on Nov. 4.