Friday morning, the U.S. Food and Drug Administration granted Emergency Use Authorization to two COVID-19 vaccines for use in children ages 6 months to 4 years old: one developed by Moderna, and the other developed by Pfizer and BioNTech.

The Pfizer vaccine for this age group is a three-shot regimen, with the first two doses delivered three weeks apart. The third dose is given eight weeks after the second vaccine. The Moderna vaccine remains a two-dose regimen, with shots distributed about one month apart.

The vote comes two days after the FDA’s Vaccines and Related Biological Products Advisory Committee unanimously supported authorizing both vaccines for this age group. The authorization will open avenues for increased protection of the youngest in America as new infections have ascended to about 100,000 per day for the past month across the country.

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