Global coronavirus cases exceed 50 million

The number of coronavirus infections worldwide topped 50 million on Sunday, according to a Reuters tally, driven by surges in the United States and Europe.

October was the worst month for the pandemic so far, with the U.S. becoming the first country to report more than 100,000 daily cases.

Former FDA Commissioner Dr. Scott Gottlieb told CBS's Face the Nation that Americans should be extra cautious as they prepare to gather for the Thanksgiving holiday at the end of November.

"It's prudent to try to get tested if you're going to bring together a group of people. But if you have individuals who are vulnerable in that setting, I think you still need to be very careful if you're going to be exposing younger people in a broader group to older individuals who are vulnerable. If you do do that, make sure they're wearing high quality masks, try to get a N95 mask and have them wear it the whole time. Try to keep people separated and distanced where you can. You know, you need to take a layered approach."

The warning came as the U.S. faces its worst surge. On Saturday, the country hit yet another grim milestone, reporting a record of more than 130,000 new daily cases.

Meanwhile -- Europe, with about 12 million cases, is the worst-affected region, overtaking Latin America.

It also makes up almost a quarter of coronavirus deaths.

The surge is testing healthcare systems across Europe and prompting Germany, France and Britain to order many citizens back to their homes again.

More than 1.25 million people have died from the respiratory disease that emerged in China late last year.