Thank you for the question.
Through the chair, I think what Dr. Tam is trying to say is that we have no certainty of what the numbers are, but we are planning, as she indicated, for the worst-case scenario. I think it's irresponsible to give you a number because we don't know, because the science is not clear and because there are a range of numbers that have happened in various countries. There are a range of estimates, but I would say that it's safe to assume that it could be between 30% of the population that acquires COVID-19 and 70% of the population. That seems to be an acceptable range.
I realize it's a large range, but that is our best guess from a science and evidence perspective.