Colorado's first gentleman Marlon Reis, who was diagnosed with the coronavirus last week with his partner Gov. Jared Polis, was hospitalized Sunday after his condition worsened, the governor's office said.

Reis experienced a "slightly worsening cough and shortness of breath," on his eighth day of the virus, according to the governor's office.

Polis drove Reis in his own vehicle to the hospital, according to the governor's office.

"Governor Polis is not experiencing any additional symptoms at this time," the governor's office said in a statement.

-ABC News' Clayton Sandell

The U.S. has hit another record level for coronavirus related hospitalizations, according to the COVID Tracking Project.

There are at least 101,487 Americans hospitalized as of Sunday evening, the tracking project tweeted.

There were over 176,000 new cases and 1,138 new deaths recorded Sunday, according to the health data.

The seven-day average for the tracking project's main metrics also saw new record highs. The seven-day average for new cases was 191,736, for deaths were 2,171 and hospitalizations were 99,939, according to the health data.

The U.S. has now reported over 100,000 cases every day for more than a month straight, and over 200,000 cases for the last three consecutive days, according to health data.

The country reported more than 1.3 million COVID-19 cases in the last week, which is more than any other week on record, the health data showed.

In the last month, the average number of daily cases has doubled. 

The U.S. is currently averaging over 186,793 new coronavirus cases every day, the highest the average has been since the beginning of the pandemic, according to health data.

Since last week, there have been nearly new 15,000 COVID-19 related deaths, with five days over the 2,000 mark, the health data showed.

That is roughly equivalent to 88 COVID-19 related deaths reported every hour. 

The U.S. is currently averaging 2,123 reported COVID-19 deaths a day, that average has increased by 142% since last month, according to the health data.

Hospitalizations continue to surge to unprecedented levels, with over 101,000 patients currently hospitalized with COVID-19 across the country, according to the health data.

Current hospitalizations have nearly doubled in the last month, the health data showed.

-ABC News' Arielle Mitropoulos

Los Angeles County set a new record number of coronavirus cases Sunday, the Health Department said.

The county saw 10,528 new cases and 23 new deaths, according to the Health Department. There are 2,855 people currently hospitalized, the Health Department said.

Los Angeles leads the country with total number of cases, 439,408, and total fatalities, 7,886, according to Johns Hopkins University's Coronavirus Resource Center.

The European Medicines Agency (EMA) said Tuesday that it could decide by Dec. 29 whether to recommend granting a conditional marketing authorization for a COVID-19 vaccine developed by U.S. pharmaceutical giant Pfizer and its German partner BioNTech.

Meanwhile, the European drug regulator said its assessment of another COVID-19 vaccine developed by American biotechnology company Moderna, which has also applied for a conditional marketing authorization, could be completed by Jan. 12.

In the European Union, conditional marketing authorizations allow for the approval of medicines or vaccines "that fulfill an unmet medical need on the basis of less complete data than normally required," according to the EMA. However, the data must show that the benefits outweigh any risks, and companies must provide further data from ongoing or new studies once a conditional marketing authorization has been granted.

The EMA said its reviews of both vaccine candidates "will proceed under an accelerated timeline" and that decisions could be issued "within weeks, depending on whether the data submitted are sufficiently robust and complete to show the quality, safety and effectiveness of the vaccine."

"Such a short timeframe is only possible because EMA has already reviewed some data on the vaccine during a rolling review," the agency said in a statement Tuesday. "These timelines are based on the type of data assessed so far in the context of the rolling review and may be subject to change as evaluation proceeds."

If the EMA decides to recommend granting conditional approval, the agency said the European Commission will then fast-track its decision-making process with a view to permitting a conditional marketing authorization that's valid in all EU and European Economic Area member states "within days."