Children, we know are not just little adults. So, we had to make sure that when the vaccines were studied and later approved, we were looking at children in the context of where their immune system is in their development. So, six months to five years, and then we think, you know, the school age kids, five years to about 11 or 12, and then we think of those pre-teens and teens. And, all of them in those age groups have slightly different immune systems, slightly different developments. So, we had to make sure that we were studying the vaccine in the context of where children are in their immune system development. We have now gone through all of that process, looking at all of those age groups, and we now have safe and effective vaccines for everyone at every age group. Everyone above six months of age can get a COVID vaccine, which is really, really exciting.
