Americans may be one step closer to vaccinating their children between the ages of 5-11, if they choose.

Pfizer and BioNTech announced Thursday that they have submitted an emergency request to the U.S. Food and Drug Administration for authorization of the companies' Covid-19 vaccine for the younger children (5-11).

"With new cases in children in the U.S. continuing to be at a high level, this submission is an important step in our ongoing effort against #COVID19," Pfizer tweeted. "We’re committed to working with the FDA with the ultimate goal of helping protect children against this serious public health threat."

Currently, the vaccine is approved for people 12 years of age and older.