And it's how many each individual case is transmitting to that's important as well. I mean, I got some responses on social media saying, "Why is Dr. Bonnie Henry ignoring the scientific evidence on masks?" There was concern as well, and we didn't know much about wearing masks in the community and what types of masks would work. Dr. Henry: That's right. Whether it's going to be available around the world, or how long that's going to take, is going to be a bit more [uncertain], but we're planning for that.

Source: CBC News September 12, 2020 14:15 UTC