As I mentioned earlier we do have a pricing tier that is reflective of a country's income level. Thirty-six per cent of our contracted volumes are for middle- and low-income countries, and we have made a 40-million dose commitment to COVAX. We also support the Government of Canada's surplus donation plans that are in place. However, on the question around IP, we do not believe that waiving IP is an easy answer to the capacity challenges that we face.
Oftentimes it's been highlighted that there are more than three mRNA vaccines that are currently seeking authorization here in Canada. The biggest bottlenecks are time to development; the manufacturing production, which requires expertise; and the global supply chains, which require procuring very difficult-to-source material. Waiving IP is not going to affect solving the current ramp-up in production that Pfizer and a number of other companies are going through right now.