Dr. Rochelle Walensky, the director of the Centers for Disease Control and Prevention, is offering parents reassurance about taking unvaccinated kids trick-or-treating.

Chris Wallace: "Whether people are vaccinated or not, as long as you're outside, you are safe?"

Dr. Walensky: "I wouldn't gather in large settings outside and do screaming like you are seeing in those football games. If you are unvaccinated, those kids that are unvaccinated, but if you are spread out doing your doing or trick-or-treating, that should be very safe for your children."

The Food and Drug Administration is set to meet Tuesday to discuss approving the Pfizer vaccine for kids as young as five.

If approved, shots could be going into arms by next week.