Dr. Anthony Fauci warned Monday that the United States could run out of beds and nurses as COVID-19 cases go up.

"It is really conceivable that if we don’t turn around the trajectory that that will happen," Fauci said during an interview on the PBS NewsHour.

Fauci, the nation's top expert on infectious diseases and a leading member of the current White House coronavirus task force, also said that families that are gathering for Thanksgiving with those outside their household are putting themselves at risk.

"We really can do something about it if we adhere to the public health measures," he said. "It’s within our power to do something about it."

Los Angeles County Director of Public Health Barbara Ferrer announced the county will shut down in-person restaurant dining starting Wednesday as cases continue to rise.

The county recorded 6,124 new cases and eight new deaths Monday, according to the local Health Department. There are 1,473 patients currently hospitalized with COVID-19 in L.A. County, the Health Department said.

Eateries and bars will be able to offer take-out options, according to Ferrer. The order will be in effect for at least three weeks, she said.

The Los Angeles County Board will meet Tuesday to discuss further shutdown measures. If the five-day case average is 4,500 or higher, a more restrictive stay-at-home order will be issued for three weeks.

"The problem is, we have such a high rate of transmission and so many people are infected that it will take a lot to get us back down," Ferrer said.

Maryland Gov. Larry Hogan announced his state will launch an education campaign and additional enforcement action this week, as the state sees a surge in COVID-19 cases.

Maryland has seen 19 straight days with over 1,000 new daily cases recorded, Hogan said. The positivity rate is 6.8%, hospitalizations have increased by 80% in the last two weeks, and  29 hospitals are at 90% capacity, according to the governor.

Federal and state officials have announced they will enforce compliance rules over Thanksgiving. A wireless alert will be send out on Wednesday that reminds the public about the pandemic and the state's enforcement.

"Following the public health directives is the only way we will be able to stop this virus, keep Maryland open for business, and keep hospitals from overflowing," Hogan said in a statement.

The Buffalo Bills announced that one of their players would be out for the rest of the season due to a heart issue brought on by the coronavirus.

The team tweeted that a cardiologist discovered tight end Tommy Sweeney had myocarditis, an inflammation of the heart, which was connected to COVID-19.

Sweeney was placed on the team's reserve/COVID-19 on Oct. 24.

The actual number of people infected with the novel coronavirus in the United States reached nearly 53 million at the end of September, according to a model developed by scientists at the Centers for Disease Control and Prevention.

The scientists estimated the cumulative incidence of COVID-19 in the U.S. population by taking the laboratory-confirmed case counts that were reported nationally and adjusting them for sources of under-detection based on testing practices in inpatient and outpatient settings. Preliminary estimates using the model found that 2.4 million hospitalizations, 44.8 million symptomatic illnesses and 52.9 million total infections may have occurred through Sept. 30.

"This indicates that approximately 84% of the U.S. population has not yet been infected and thus most of the country remains at risk, despite already high rates of hospitalization," the scientists wrote in a report published in the Nov. 25 issue of the journal Clinical Infectious Diseases.

There were 6.9 million laboratory-confirmed cases of of domestically-acquired infections that were detected and reported nationally through Sept. 30. Since then, the CDC's tally has increased to nearly 12.5 million. Based on the model's ratio, the true estimated total would now be more than 95 million.