Pfizer asked U.S. regulators Tuesday to allow boosters of its COVID-19 vaccine for anyone 18 or older, a step that comes amid concern about increased spread of the coronavirus with holiday travel and gatherings.

Approximately 15,150 pediatric COVID-19 doses have been administered as of midday Monday, according to the state public health department. 

The Biden administration framed its vaccine mandate for private employers in life-and-death terms Monday in a legal filing that sought to get the requirement back on track after it was halted by a federal court.

Some district leaders say offering vaccine clinics on campus is key to improving access and helping overcome hesitancy. Still, many school systems are choosing not to offer elementary schools as hosts for vaccination sites after some middle and high schools that offered shots received pushback.

Classes for Chicago Public Schools students will be canceled Friday, Nov. 12 to allow families an opportunity to get their children vaccinated against COVID-19, now that the vaccine has been approved for kids ages 5 to 11.

The Occupational Safety and Health Administration said companies that fail to comply could face penalties of nearly $14,000 per violation.

U.S. health officials on Tuesday gave the final signoff to Pfizer’s kid-size COVID-19 shot, a major expansion of the nation’s vaccination campaign.

A new study shows that vaccination against a coronavirus or a previous infection can provide protection against other viruses in that same family – and it shows that generic vaccines could be developed to protect against future viruses.

A Cook County judge won’t throw out Chicago’s COVID-19 vaccine mandate entirely, but in a ruling Monday he has put a hold on a Dec. 31 deadline for members of the Chicago Police Department to get fully vaccinated.

Anticipating a green light from vaccine advisers, President Joe Biden's administration is assembling and shipping millions of COVID-19 shots for children ages 5-11. The first could go into kids' arms by midweek.

Chicago health officials say they’re ready to roll out a coronavirus vaccine for kids ages 5 to 11 now that the FDA has given emergency use authorization for kid-size doses of Pfizer’s COVID vaccine

Approximately 130 employees — most of whom are members of the Chicago Fire Department and the Department of Water Management — were not likely to succeed on any of their claims, the judge ruled.

The Chicago City Council voted 13-30 Friday to reject a push to reverse Mayor Lori Lightfoot’s order that all city employees disclose whether they have been vaccinated against COVID-19 — and get fully vaccinated by Dec. 31.

The FDA cleared kid-size doses — just a third of the amount given to teens and adults — for emergency use, and up to 28 million more American children could be eligible for vaccinations as early as next week.

Thirteen alderpeople invoked state law to call a special meeting of the Chicago City Council for 11 a.m. Friday in an attempt to force a vote on a measure that would reverse Mayor Lori Lightfoot’s order that all city employees disclose their vaccination status.

The U.S. moved a step closer to expanding COVID-19 vaccinations for millions more children as a panel of government advisers on Tuesday endorsed kid-size doses of Pfizer’s shots for 5- to 11-year-olds.