I have a quick question for Dr. Liu.
You've had a lot of experience working in epidemics in other countries. You talked about protecting the front-line health care workers and the anxiety related to not having enough PPE. What do you think about the use of what I understand are called PAPR suits, the kind of haz-mat suits with respirators that were used with Ebola? My understanding is that in places where they used those kinds of things, such as Italy, zero health care workers became sick. I understand that isn't being suggested as necessary by the provinces, the Public Health Agency of Canada or the WHO, but I think people who are working all day with COVID-19 patients would like to have them. What do you think about the possibility and the desirability of using them?