COVID-19 updates: Anti-vaccine protesters halt vaccinations at Dodger Stadium

A draft request for assistance between the Federal Emergency Management Agency and the U.S. Department of Defense is under discussion that would seek as many as 10,000 service members to support administering COVID-19 vaccine shots up at 100 sites nationwide, according to a FEMA official who spoke on condition of anonymity because the details were not final.

A defense official, who also spoke on condition of anonymity, confirmed discussions are under way, but the final number of personnel is not settled.

It is also unclear what kind of active duty or National Guard mix it could be, and whether it includes National Guardsmen already helping in the vaccine effort around the country.

ABC News' Matthew Vann and Luis Martinez contributed to this report.

Dr. Anthony Fauci, chief medical adviser to U.S. President Joe Biden, told Fox News' "America Reports With John Roberts & Sandra Smith" that there’s no official recommendation yet on wearing double masks.

"The CDC doesn't officially recommend wearing double masks," Fauci said. "You know what would be a good start? If everybody wears at least one mask."

ABC News’ Anne Flaherty contributed to this report.

When Oregon health officials found themselves trapped on a road in a snowstorm, they walked car to car to administer leftover COVID-19 vaccine doses.

The staff and volunteers from Josephine County Public Health Department held a mass vaccination event at a high school Tuesday before getting trapped in the storm, they said.

"The team had six doses of COVID-19 vaccinations left to administer," but the doses would have expired before reaching their next destination, the department said.

"Not wanting to waste any doses, dedicated JCPH staff members began walking from car to car, offering stranded motorists a chance at receiving the vaccine," the department said. "In the end, all six doses were administered," including one to a sheriff’s office employee who had missed the mass vaccination event.

Andy Slavitt, a senior White House adviser for COVID-19, said Wednesday that any vaccine "stockpile that may have existed previously, no longer exists."

"We are taking action to increase supply and increase capacity. But even so, it will be months before everyone who wants a vaccine will be able to get one," Slavitt said. "Our practice is to maintain a rolling inventory of two to three days of supply that we can use to supplement any shortfalls in production and to ensure that we are making deliveries as committed. But we are passing doses directly along to states, very much in real time as they ordered them."

Jeff Zients, the new White House coordinator on COVID-19, said the U.S. Department of Health and Human Services will amend its rules to allow doctors and nurses who have recently retired to administer shots. They also plan to allow people licensed to vaccinate in their state to do so across state lines.

Over 23.5 million vaccine doses have been administered in the United States so far, according to the latest data from the Centers for Disease Control and Prevention.

ABC News’ Anne Flaherty and Sophie Tatum contributed to this report.