The U.S. Bureau of Prisons is working with the federal government's COVID-19 vaccine initiative, Operation Warp Speed, to prioritize prison staff and inmates once a vaccine is approved, according to a memo obtained by ABC News.

The memo said the U.S. Centers for Disease Control and Prevention is determining allocations but the Bureau of Prisons will be included in that initial allotment, which will first be reserved for staff. The memo noted that staff must register on the CDC's website before receiving the vaccine, which will be administered in two doses.

"The BOP Health Services Division is working with the CDC and Operation Warp Speed to ensure the BOP is prepared to receive the COVID-19 once it becomes available," the memo said.

When asked for comment, a Bureau of Prisons spokesperson told ABC News the agency is working with the CDC and Operation Warp Speed "to ensure the BOP is prepared to receive the COVID-19 Vaccine once it becomes available."

Earlier this month, a report by the U.S. Department of Justice Office of the Inspector General "identified numerous failures" in how staff at a federal prison complex in south Louisiana responded to a COVID-19 outbreak at the facility.

The Federal Correctional Complex in Oakdale, Louisiana, suffered the first coronavirus-related death in the federal prison system. As of Nov. 8, the facility had 256 confirmed cases of COVID-19, and at least eight of the prison's approximately 1,800 inmates had died from COVID-19 complications, according to the inspector general's report.

ABC News' Luke Barr contributed to this report.

The International Air Transport Association (IATA) announced it is finalizing the development of a digital health pass that will allow travelers to store all vaccination or testing information required by airlines and governments amid COVID-19 restrictions.

IATA, a Montreal-based body that represents many of the world's major airlines, plans to test the "Travel Pass" platform later this year before launching the set of mobile apps for Android and Apple iOS smartphones in the first half of 2021.

"Our main priority is to get people traveling again safely," Nick Careen, IATA's senior vice president of airport, passenger, cargo and security, said in a statement Monday. "In the immediate term that means giving governments confidence that systematic COVID-19 testing can work as a replacement for quarantine requirements."

The "IATA Travel Pass" incorporates four open sourced and interoperable modules: a global registry of health requirements that enables passengers to find accurate information on travel, testing and eventually vaccine requirements for their journey; a global registry of testing and vaccination centers that allows passengers to find testing centers and labs at their departure location which meet the standards for testing and vaccination requirements of their destination; a "Lab App" that enables authorized labs and testing centers to securely share test and vaccination certificates with passengers; and a "Contactless Travel App" that allows passengers to create a "digital passport," receive test and vaccination certificates while verifying that they are sufficient for their journey, and share those certificates with airlines and authorities to facilitate travel.

The "Contactless Travel App" will also link to a digital copy of the user's passport and other travel documentation.

"Testing is the first key to enable international travel without quarantine measures," IATA director-general and CEO Alexandre de Juniac said in a statement Monday. "The second key is the global information infrastructure needed to securely manage, share and verify test data matched with traveler identities in compliance with border control requirements."

ABC News' Dragana Jovanovic contributed to this report.

Russia registered 491 more fatalities from COVID-19 in the last 24 hours, marking the country's highest single-day death toll from the disease so far.

An additional 24,326 cases of COVID-19 were also confirmed nationwide, down from the previous day's peak of 25,173 newly diagnosed infections. The cumulative total now stands at 2,138,828 confirmed cases, including 37,031 deaths, according to Russia's coronavirus response headquarters.

Russia has seen a resurgence in COVID-19 infections in recent weeks, with multiple back-to-back days of record-high deaths and cases. The Eastern European nation of 145 million people has the fifth-highest tally of confirmed cases in the world, behind only the United States, India, Brazil and France, according to a real-time count kept by Johns Hopkins University.

Russian Deputy Prime Minister Tatyana Golikova said Tuesday that a mass COVID-19 vaccination campaign is expected to begin next year, according to the Interfax news agency. She noted that immunization will be voluntary.

More than 2 million doses of Sputnik V, a COVID-19 vaccine developed by the Russian Ministry of Health's Gamaleya Research Institute of Epidemiology and Microbiology, will be produced by the end of the year, Golikova said.

ABC News' Alina Lobzina contributed to this report.

A COVID-19 outbreak at a veterans home in Illinois has left more than two dozen people dead, according to a report by Chicago ABC station WLS-TV.

At least 27 veterans who lived at the Illinois Veterans Home in LaSalle, some 100 miles southwest of Chicago, have died from COVID-19, according to WLS, which cited the Illinois Department of Veterans.

"That's over 20 percent of our veterans that have passed away in the past several weeks," state Sen. Sue Rezin told WLS.

Rezin said the facility, which is in her district, continues to see an alarming rise in COVID-19 cases.

"November 4th, there were only four cases of COVID within the home," she said. "Very quickly within the past 20 days, we've had almost 200 cases."

The Illinois Senate Veterans Affairs Committee will meet virtually Tuesday to discuss the crises at the LaSalle facility.

"We need answers and we need answers today," Rezin said.

So far, a total of 96 residents and 93 employees at the Illinois Veterans Home in LaSalle have tested positive for COVID-19, according to a statement from the facility's administrator, Angela Mehlbrech. The veterans home has been conducting health screenings of its residents and staff, maintaining social distancing practices, wearing face coverings as well as intensifying cleaning and disinfecting protocols.

An infection control team has been sent to the facility, according to Illinois Gov. J.B. Pritzker.

"When there is massive, widespread community spread," Pritzker told WLS, "there's no way to keep it out of every facility."

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.