The airline's CEO and president informed employees in a letter Friday.
The United States has been facing a COVID-19 surge as the more contagious delta variant continues to spread.
More than 700,000 Americans have died from COVID-19 while over 4.7 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 65% of Americans ages 12 and up are fully vaccinated against COVID-19, according to data from the CDC.
First lady Jill Biden received her COVID-19 booster shot Monday, according to Michael LaRosa, her spokesman.
The shot was administered at the White House in the afternoon, LaRosa told ABC News.
-ABC News' Ben Gittleson
An Arizona judge ruled Monday that the state's ban on mask mandates in schools is unconstitutional.
Judge Katherine Cooper sided with the Arizona School Boards Association, which contended that the Arizona State Legislature's law to ban school districts from issuing a mask mandate violates the state constitution's title requirement and single subject rule.
The association argued that the legislature included policy regarding 30 subjects into one bill.
"The single subject rule precludes legislators from combining unrelated provisions into one bill to garner votes for disfavored measures. Together, these requirements promote transparency and the public’s access to information about legislative action," the judge wrote in her decision.
The law was slated to go into effect on Sept. 29.
The state has until Nov. 1 to file an objection or response to the ruling.
Novant Health announced Monday that it terminated around 175 staff members at its medical centers who failed to comply with its vaccine mandate.
Novant's system includes 15 hospitals, 800 clinics and hundreds of outpatient facilities throughout North Carolina.
Last week, 375 members were unvaccinated -- despite a Sept. 15 deadline for the mandate -- and suspended, the hospital said.
Since then, 200 members have received at least one shot and 99% of Novant's 35,000 team members are compliant, according to the hospital's administrators.
Employees who received an mRNA vaccine have until Oct. 15 to get their second dose, Novant said in a statement.
-ABC News' Brian Hartman
A pharmacy owner in Puerto Rico has pleaded guilty to federal charges after 24 children between the ages of 7 to 11 were given a full dose of the Pfizer-BioNTech vaccine, according to the U.S. Department of Justice.
The pharmacy, located 10 miles northeast of Ponce, administered the vaccines between May 28 and June 22, the Justice Department announced Monday.
Owner and president of Farmacia Gabriela, Lizz Ann Banchs, has pleaded guilty to participating in a felony conspiracy to convert government property and to commit health care fraud.
Banchs faces a maximum penalty of five years in prison and a fine of $250,000, as well as three years of supervised release.
-ABC News’ Joshua Hoyos
