Updated

Pfizer Inc. said Tuesday it asked the Food and Drug Administration to authorize its COVID-19 booster shots for all individuals ages 18 and older.

"The amendment request is based on results from a Phase 3 randomized, controlled trial evaluating the efficacy and safety of a 30-µg booster dose of the vaccine, which enrolled more than 10,000 participants during a period when the Delta variant was the prevalent strain," the companies said in a joint press release.

The first coronavirus booster shots – also Pfizer's – were granted for emergency use authorization (EUA) in September.

That same month, an external advisory board voted to recommend booster shots on an emergency basis only for those with high-risk jobs, medical conditions or people 65 and older.

COVID-19 VACCINATION AND YOUNG CHILDREN: WHAT TO KNOW

FILE - In this Oct. 5, 2021, file photo a healthcare worker fills a syringe with the Pfizer COVID-19 vaccine at Jackson Memorial Hospital in Miami.  (AP Photo/Lynne Sladky, File)

Since then, the FDA and U.S. Centers for Disease Control and Prevention (CDC) have also approved the Pfizer/BioNTech vaccine for emergency use for children ages 5-11

Approximately 28 million kids in that age range are eligible for the shots and the White House says the federal government has procured enough of the two-dose vaccine for all of them.

GOP, DEM SENATORS PUSH FOR 9/11-STYLE COVID-19 COMMISSION

A Pfizer study of 2,268 children found the vaccine was nearly 91% effective at preventing symptomatic COVID-19 infections. 

Additionally, the FDA studied the shots in 3,100 vaccinated kids in concluding the shots are safe.

At least 94 children ages 5-11 have died from COVID-19 since the start of the pandemic, more than 8,300 have been hospitalized and more than 5,000 have developed a serious inflammatory condition linked to the virus.

CLICK HERE TO GET THE FOX NEWS APP

CDC data shows that 194 million Americans, ages 12 and above, are currently fully vaccinated against the infectious disease.

The Associated Press contributed to this report