It was really important to make sure that these vaccines were truly safe, even in the youngest of kids. And so, that did require extra steps. The way vaccines will perform in children is not necessarily identical to how they perform in adults. And this is why you really do need to be careful and to study them separately in young children. The Pfizer and Moderna vaccines were tested to determine what dose would be most immunogenic. In other words, would do the best job of producing an effective immune response, but at the same time, wouldn’t produce too many side effects. And so, there’s certainly a balancing act that we want to get right there so the vaccines work, but they don’t cause side effects. People should feel confident that we did not see any serious side effects among kids. But, when we look at the neutralizing antibody levels, which are a very good marker of how protective these vaccines are, both the Pfizer and Moderna vaccines produce very good neutralizing antibody levels.
