Thank you very much for the question.
As you know, two new vaccines have been authorized recently. One is a protein subunit vaccine, which is the Novavax vaccine. The other is a virus-like particle vaccine, which is the Medicago vaccine. Medicago's is a new technology based on growing the vaccine in plants, so that's a very interesting new technology.
NACI has made recommendations with regard to both of those vaccines. It has expressed a preference for the mRNA vaccines, which we have been using for a long time. We have a lot of comfort with regard to their effectiveness and their safety. While data accumulates for the other vaccines, we have certainly said that if someone doesn't want an mRNA vaccine, then the Novavax and the Medicago vaccines are options that they can take. We have a lot more experience with the mRNA vaccines right now, so the preference is for those vaccines.
As mentioned before, we'll get more information about these newer vaccines and NACI will adjust its recommendations as needed.