I think it's a good question, which is, as you say, what are the primary drivers of AMR globally? I think, first, the way in which tuberculosis is managed in low-income countries is the biggest driver, and the reason you have so much resistance is that health systems are not geared to supporting people for treatment completion. That relates to the fact that they haven't discovered the lesson learned in this country, that when you're ill, you have to pay, and in order to pay, you have to sell the farm. That's what led to the 1962 Saskatchewan medicare act, which prevented that from being the case.
We've moved to a system in Canada of prepayment, and in so many countries of the world, when people are sick, they have to find the money to pay, and finding the money to pay for four drugs for six months for TB is near impossible. But if the message is that all countries need to move toward UHC, which is what WHO is advocating, then the likelihood that people are going to buy drugs one week and not get them the next—which is the fastest way to accelerate resistance—is going to go down.
To me, Canada's leadership on this is.... Everybody globally loves the health care system in Canada. I'm proud to say I'm from Canada. People say, “Oh, you guys have got a great health care system.” But we should be advocating that other countries, other governments, make the same sorts of reforms that we did in the 1960s to ensure that people have access to care, because the correlation across countries is very clear. The more a system promotes universal access, the lower the rates of antimicrobial resistance. That's number one.
Number two is the ubiquitous use of antibiotics as growth promoters. We see that not only in Canada. We see that all over the world, and this is dangerous. This is really dangerous because we have seen in China this jump of resistant strains to very important antibiotics like colistin from animals to humans. This was documented in 2011.
If you don't look and see that there's a need to move towards antibiotic-free livestock rearing and aquaculture, then that's being blind to another huge area.
The opportunity, I think, is an immense one. The knowledge agenda here—and Gerard represents this most fundamentally in this group—is perhaps one of the most exciting science frontiers there is, but it's not limited in geography to McMaster. It's a global knowledge challenge, so I think, then, if you say we need to solve this problem collectively, there needs to be efforts by the Canadian Institutes for Health Research, the Canadian Institutes for Advanced Research, and other bodies to join up with the alliance for TB drugs and other efforts, and use Canadian resources in a way that is going to give value, not only to Canadians but to global citizens.
I think there's a huge opportunity to address the science agenda on that front, which would be a third effort to tackle this problem.