COVID-19 updates: More than 10,000 new deaths reported in US in 1 week

Talk show host Wendy Williams has a breakthrough COVID-19 case, her show said.

The new season of "The Wendy Williams Show" will be postponed to Oct. 4.

New data from Pfizer show that Americans will likely need a booster shot about six months after their second vaccine dose.

Pfizer said the vaccine's protection against infection is waning over time. The company, however, said it didn't find significant evidence that the delta variant was contributing, more that it would've happened over time regardless.

Pfizer also heavily leaned on data from Israel to show that the vaccine's protection against severe COVID-19 could start to erode in the U.S. as it has there. So far, vaccine efficacy against hospitalization in the U.S. has held up, according to CDC data.

The data was released by the FDA ahead of a meeting where it will be reviewed by independent advisers. If the advisory committee supports boosters, the FDA would then formally amend its vaccine approval for Pfizer. The decision will be sent to the CDC's Advisory Committee on Immunization Practices and finally to the CDC for sign off.

-ABC News' Cheyenne Haslett

TSA agents screened 1,271,516 travelers at U.S. airports Tuesday, the lowest number since May 5.

-ABC News' Sam Sweeney

The largest hospital in Alaska is beginning to ration care as COVID-19 patients flood the facility.

"While we are doing our utmost, we are no longer able to provide the standard of care to each and every patient who needs our help," Dr. Kristen Solana Walkinshaw, chief of staff at Providence Alaska Medical Center in Anchorage, wrote in an op-ed published Tuesday by The Anchorage Daily News. "The acuity and number of patients now exceeds our resources and our ability to staff beds with skilled caregivers, like nurses and respiratory therapists. We have been forced within our hospital to implement crisis standards of care."

"What does this mean? In short, we are faced with a situation in which we must prioritize scarce resources and treatments to those patients who have the potential to benefit most," she continued. "We have been required to develop and enact policies and procedures to ration medical care and treatments, including dialysis and specialized ventilatory support."

Walkinshaw explained how what happens at Providence Alaska Medical Center and other hospitals in Alaska's biggest city "impacts our entire state" because "many specialty cares can only be provided in Anchorage."

"People from all around Alaska depend on Providence to provide medical care for people statewide. Unfortunately, we are unable to continue to meet this need; we no longer have the staff, the space or the beds," she wrote. "Due to this scarcity, we are unable to provide lifesaving care to everyone who needs it. Our emergency room is overflowing; patients wait in their cars for hours to see a physician for emergency care. On a daily basis, our transfer center is unable to accept patients who sit in emergency rooms and hospitals across the state, people who need care their current facility is unable to provide. If you or your loved one need specialty care at Providence, such as a cardiologist, trauma surgeon or a neurosurgeon, we sadly may not have room now. There are no more staffed beds left."

Walkinshaw urged people to wear face masks, even if they are fully vaccinated against COVID-19, and to get the vaccine if they are eligible and have not done so yet.

"We ask that you help us to open our beds again so that we may continue to care for all Alaskans," she wrote.