Amber, do you think the higher RO value that is being seen with Delta is a result of a change in the virus or could it also be a change in our behaviors-the unmasking, going back into restaurants, going to "prepandemic" routines when we were just in a valley between surges? Do you think that range in the RO on the slide could come in on the low end with more responsible pandemic behaviors?

Finally, Blaine and I know this is a very busy time for you and we so appreciate you continuing to keep you share your knowledge with us. It helps so much!

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