Last week the Centers for Disease Control endorsed the use of the Pfizer-BioNtech Covid vaccine in children ages five to 11. It was an announcement many families around the country had been anxiously awaiting.

Since then, about a million kids have rolled up their sleeves to receive the shot. But according to recent surveys, more than half of American parents remain hesitant. They question how safe the vaccine is, how effective it is, and whether kids, who tend to have milder cases of Covid, need it in the first place.

Apoorva Mandavilli is a reporter at the New York Times. She covers science and global health, which, for the last year and a half has meant a focus on the coronavirus pandemic, vaccinations and the government agencies managing this public health crisis. She joined Diane to answer questions about kids and vaccines.