Pfizer says its COVID-19 vaccine works for children ages 5 to 11. The vaccine maker said Monday it plans to seek authorization for this age group soon in the U.S., Britain and Europe -- a key step toward beginning vaccinations for youngsters.

The vaccine made by Pfizer and its German partner BioNTech already is available for anyone 12 and older. But many parents are anxiously awaiting vaccinations for their younger children.

Pfizer studied a lower dose of its two-dose vaccine in more than 2,200 kindergartners and elementary school-aged kids.

The kids developed coronavirus-fighting antibody levels just as strong as teenagers and young adults.

LOOK: Here are the pets banned in each state

Because the regulation of exotic animals is left to states, some organizations, including The Humane Society of the United States, advocate for federal, standardized legislation that would ban owning large cats, bears, primates, and large poisonous snakes as pets.

Read on to see which pets are banned in your home state, as well as across the nation.

50 Most Popular Chain Restaurants in America

YouGov investigated the most popular dining brands in the country, and Stacker compiled the list to give readers context on the findings. Read on to look through America's vast and divergent variety of restaurants—maybe you'll even find a favorite or two.