Children under the age of 12 are not yet eligible to receive a vaccine at all, and children between 12 and 15 were just authorized to receive the Pfizer vaccine late last week.

A virus expert at Children's Hospital of Philadelphia says he expects the country to "again see more than 1,000 deaths a day" as the delta variant continues to spread.

Critics of anti-pandemic measures prompted schools to end mask mandates, but doing so exposed millions to COVID infection, contributing to nearly 22,000 deaths.

The CDC said they recommend schools keep students in masks for two main reasons. First, students will not be fully vaccinated by the end of the 2020-2021 school year. Children under the age of 12 ...