Thank you, Mr. Chair.
Thank you to all the witnesses for being with us.
Dr. Brock, I'm going to drill into tuberculosis a bit, if I can. It's my understanding that we have a problem with tuberculosis, particularly in Canada's north and among our indigenous communities. It think there's a domestic interest that I'd like to explore a bit with you.
What is the difference between multidrug-resistant tuberculosis and extensively drug-resistant tuberculosis? How common are those two variations?