- The CDC could sign off on the vaccine

for 28 million more children within weeks.

Pfizer's request comes asthe Delta variant has caused

a jump in child infections.

- All done.- You did it.

- Was that bad?

You did so well.- You did.

- [Brody] Pfizer applied for emergency use

of a lower dose of the COVID-19 vaccine

for children ages five to 11 on Thursday.

Until now, only people 12and up could be vaccinated.

- It did hurt when they put itin, but after about two days

it like, the pain just like went away.

- [Brody] Eight-year-old Sebastian Prybol

received two doses duringthe Pfizer COVID trial,

celebrating with cake and a fresh bandaid.

Now the plan is to givechildren one-third the dose

it's given to people 12 and up.

Pfizer's research studiedmore than 2,000 children

under the age of 11.

Data shows childrenwith two kid-sized doses

developed antibody levelsas strong as adults.

- I'm hoping other kids get the vaccine.

If I had to get the shotagain, I would, honestly.

- [Brody] Even though the virus is known

to cause serious illnessin older populations,

COVID-19 has killed at least520 children in the US.

Pfizer's vaccine requestcomes as the Delta variant

makes it hard for manyschools to stay fully open.

Surveys found more thana quarter of classrooms

were quarantined due to possible exposure.

As for adults, PresidentBiden again, making his case

for vaccine mandates duringa trip to Illinois Thursday.

- We have to beat thisthing, so while I didn't race

to do it right away,that's why I've had to move

toward requirements thateveryone get vaccinated

where I had the authority to do that.

That wasn't my first instinct.

- [Brody] Roughly 22% of American adults

haven't got the vaccine.

In the coming weeks, morethan 100 million workers

will be subject to vaccine requirements

under Presidential order.

- The Labor Departmentis gonna shortly issue

an emergency rule to require all employees

with more than 100people, whether they work

for the federal government or not,

to ensure their workersare fully vaccinated

or face testing at least once a week.

- The president first spokeabout vaccine mandates

a month ago, but thegovernment still hasn't issued

regulations for it, leavingbusinesses in the dark.

The vaccine push comes ahead of what is

to be a busy holiday travel season.

United Airlines, thefirst airline to vaccine

99% of its staff, plans tofly 3500 flights in December

every single day.

And on the vaccine forchildren, the FDA will

publicly review Pfizer'sdata on October 26th,

then the CDC makes their final call,

and like adults, kidswould receive two shots

about a month apartwhich means they likely

won't be fully vaccinateduntil after Thanksgiving.

Brody Carter, "CBN News."