this week promoting covid booster shots as a key fda advisory panel is meeting today to consider whether they are needed. joining us now is sara jane tribl senior correspondent for kaiser health news. you have been reporting this out. this has been a bit of confusing time for people as they look at different information coming out whether boosters are needed and we're seeing this meeting today. tell us why dr. fauci, why you have learned that dr. fauci and the nih are behind boosters. >> so the big head lien here is that the nih has been talking about boosters since january. think about that for a minute. january was before most of us got our shots. we were struggling to understand when we were going to get our shots. logging into vaccine hunters and trying to make sure we got our first shots. while we were doing that, the chief scientists and principle investigators at the nih were already talking about doing boosters. not only did they talk about it, they helped coordinate a group of 60 to 70 experts from around the world to talk about and