Thank you, Chair. Thanks to our witnesses. Thank you again for appearing before the committee this morning.
Dr. Berkley, you mentioned some vaccine brands for which there's less demand, such as AstraZeneca, and that there are some vaccines that were rejected because of short shelf life. Both are actually bad news, because there's a waste there that could be prevented.
First, would you be able to tell us how many vaccinations were rejected due to short shelf life? Where is the deficiency in the system? Is it the infrastructure? Is it the supply chain? What is it that causes that waste of vaccinations?