Thank you, Mr. Chair.
Before I get into my questions, I just want to thank all the witnesses as well for the work they're doing on behalf of Canadians, and I want to thank them for answering all the questions tonight. In my opinion, it's easy to criticize distribution plans, recommendations and decisions, and in some cases to incite fear in people when it comes to the vaccines. However, I have full confidence in you folks, and I know that you have the best interest of all Canadians in mind. I'm really filled with gratitude for the work you're doing. In my opinion, you're not just Canadian leaders; I truly believe you're world leaders.
I'm going to start off with Dr. Quach-Thanh. I guess it's a practical scenario, and it's kind of how we roll here in Cape Breton—Canso. Here in Nova Scotia we've begun vaccinating seniors over the age of 80. My mom actually received her letter last week. We are all very pleased by that.
I noticed when booking a vaccine appointment that there is now up to a 105-day waiting period between the administration of the first dose and the second dose, rather than two to three weeks between the doses.
I think you've highlighted this, but this is a chance for you to do a deeper dive. I'm wondering if you can explain to the committee—and, just as important, to those following at home—why NACI is recommending that COVID-19 vaccine intervals between the first and second dose could be extended up to 105 days. Also, can you give us a deeper synopsis of what has changed since the original recommendations?