The United States has been facing a COVID-19 surge as the more contagious delta variant continues to spread.
More than 722,000 Americans have died from COVID-19 while over 4.8 million people have died from the disease worldwide, according to real-time data compiled by the Center for Systems Science and Engineering at Johns Hopkins University.
Just 66.5% of Americans ages 12 and up are fully vaccinated against COVID-19, according to data from the CDC.
Here's how the news is developing. All times Eastern.
Oct 11, 2021, 3:09 PM EDT
Philadelphia Marathon requiring in-person participants to be fully vaccinated
All in-person runners must be fully vaccinated two weeks ahead of next month's Philadelphia Marathon, officials announced. Runners with only a negative test won't qualify.
Runners participate in the Rock 'n' Roll Half Marathon on Sept. 15, 2019 in Philadelphia.
Mitchell Leff/Getty Images, FILE
The race is set for Nov. 21.
Oct 11, 2021, 12:41 PM EDT
Daily death average nearly 8 times higher than in mid-July
Although daily deaths have declined by about 17% in the last four weeks, the U.S. is still reporting an average of 1,465 new deaths each day, according to federal data. Over the last four days alone, the U.S. reported another 7,500 confirmed COVID-19 deaths.
Aubrea Baker displays her wedding photo as she and her 7-month-old daughter Haylen visit one of her late husband's favorite fishing spots, Oct. 2, 2021, in Burlington, Kan. Her husband, Danny Baker, was among the 700,000 U.S. victims of COVID-19, dying on Sept. 14, after testing positive in July.
Charlie Riedel/AP
The death average is nearly eight times higher than in mid-July when the national average had dropped to a near pandemic low of 192 daily deaths, according to federal data.
But hospitalization admissions have dropped by about 11.4% in the last week, according to federal data.
There are currently about 65,000 COVID-19 patients in U.S. hospitals, down from 104,000 patients in late August.
Members of a Covid critical care unit treat a COVID-19 patient inside his isolation room in the ICU at Sarasota Memorial Hospital in Sarasota, Fla., Sept. 22, 2021.
Shannon Stapleton/Reuters
In the Mountain Region -- Colorado, Montana, North Dakota, South Dakota, Utah and Wyoming -- hospital admissions are steadily trending up, federal data show. In the Northeast, hospital admissions are no longer trending down.
-ABC News' Arielle Mitropoulos
Oct 11, 2021, 12:13 PM EDT
Boston Marathon returns with COVID protocols in place
The Boston Marathon returned with 18,000 runners on Monday following a two-year hiatus.
Benson Kipruto, of Kenya, approaches the tape to win the 125th Boston Marathon on Oct. 11, 2021, in Boston.
Winslow Townson/AP
Runners cross the starting line of the 125th Boston Marathon, Oct. 11, 2021, in Hopkinton, Mass.
Mary Schwalm/AP
The field size was reduced by 36% this year while another 28,000 runners participated in the race virtually.
Runners were required to provide proof of vaccination or a negative COVID-19 test. Although masks were not mandated for the 26.2-mile course, face coverings were enforced on participant transportation, as well as for volunteers who interacted with participants.
According to the Boston Marathon Association, 95% of all Boston Marathon volunteers were vaccinated and 100% of Boston Marathon medical volunteers were vaccinated.