Dr. Mark Wilson, Jefferson County Health Officer, AL, Pfizer Vaccines For Children 5-11 yr olds, "safest vaccines we've ever seen."

Dr. Mark Wilson, Jefferson County Health Officer, AL standing in for Dr Scott Harris on Capitol Journal. Clipped segment on discussion about Pfizer vaccine for 5 - 11 year olds. Quote: "These vaccines are some of the most effective and safest vaccines we have ever seen." Is that true? One third of the population flocking to get this children's vaccines? Is that true?