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.

Hospitalizations of COVID-19 patients in the United States reached an all-time high of 93,238 on Sunday, according to the COVID Tracking Project.

The figure surpassed Saturday's record of 91,635 COVID-19 patients currently hospitalized. Current COVID-19 hospitalizations have gone up every day since Oct. 25, except for Sunday when the figure dipped slightly to 89,834, which The COVID Tracking Project credited to "the holiday effect."

The COVID Tracking Project, a volunteer-run effort launched from The Atlantic magazine to track the U.S. outbreak, has warned of data inconsistencies in the coming days and weeks due to lags over Thanksgiving followed by a potentially very large backlog from the holiday. For instance, some states didn't report any data at all on Friday, the day after Thanksgiving, while others only had partial reports. The totals for testing and new cases were inflated Saturday and Sunday as several states reported two days' worth of data.

"The data wobbles don't consist only of some states not reporting at all -- though that's happened a lot -- but that most or all states that are reporting do not have a full data pipeline from labs and health departments," The COVID Tracking Project wrote on its Twitter account Sunday.

However, the group noted that hospitalization numbers "are less affected by the data slowdown."